Medically Reviewed By
Dr. Nikhil Mehta
MS (Orthopaedics), Fellowship in Paediatric Orthopaedics (PGI)
Table of Contents:
- When Should You Seek Medical Help During Pregnancy?
- Severe or Persistent Vomiting
- Chest Pain or Breathing Difficulty
- Warning Signs in Early Pregnancy
- Warning Signs in the Second and Third Trimesters
- Warning Signs of Preeclampsia
- What Should You Do When a Warning Sign Appears?
- Can Pregnancy Complications Be Prevented?
- Final Thoughts
- Frequently Asked Questions
Pregnancy brings many physical and emotional changes. Mild nausea, tiredness, backache, breast tenderness and occasional abdominal discomfort can all be part of a normal pregnancy. However, certain symptoms may indicate a complication and should not be ignored.
Knowing the main pregnancy warning signs can help you understand when it is safer to contact your doctor or visit a maternity hospital. An unusual symptom does not always mean that something is seriously wrong. In many cases, a medical assessment may show that both mother and baby are doing well.
Still, symptoms that appear suddenly, become severe, continue for a long time or feel different from your usual pregnancy experience need medical attention.
Here are 10 important warning signs during pregnancy that every expectant mother and family member should know.
This article is for general awareness only. It should not replace advice from your gynecologist or obstetrician.
When Should You Seek Medical Help During Pregnancy?
Contact your doctor when a symptom:
- Starts suddenly
- Is severe or worsening
- Does not improve with rest
- Occurs with bleeding, fever or dizziness
- Makes breathing difficult
- Causes fainting or confusion
- Is associated with reduced baby movement
- Makes you feel that something is not right
Do not wait for several symptoms to appear together. A single serious symptom may be enough to seek medical care.
- Vaginal Bleeding During Pregnancy
Light spotting may occur in some pregnancies, especially during the early weeks. However, any bleeding during pregnancy should be discussed with your doctor.
Seek urgent medical attention if the bleeding:
- Is heavy
- Is bright red
- Contains clots or tissue
- Occurs with severe abdominal pain
- Is accompanied by cramps
- Happens with dizziness or fainting
- Appears during the second or third trimester
- Occurs with one-sided pain or shoulder pain
Bleeding during pregnancy may have several causes. These can include changes in the cervix, miscarriage, ectopic pregnancy or placenta-related concerns. Bleeding does not always mean that the pregnancy is at risk, but the cause cannot be confirmed without medical assessment.
Contact your doctor or maternity hospital immediately if you experience heavy bleeding or bleeding with pain.
- Severe or Persistent Abdominal Pain
Mild cramps or stretching sensations may occur as the uterus grows. However, severe, persistent or sudden abdominal pain should not be ignored.
Speak to your doctor urgently if the pain:
- Is sharp or severe
- Continues for a long time
- Becomes worse
- Is mainly on one side
- Occurs with bleeding
- Is accompanied by fever
- Happens with vomiting
- Causes dizziness or fainting
- Is felt below the ribs
- Does not improve after rest
One-sided abdominal pain in early pregnancy, especially with bleeding or shoulder pain, may need assessment for an ectopic pregnancy. Upper abdominal pain later in pregnancy, particularly with headache or vision changes, may be linked to a blood pressure-related complication.
Do not try to diagnose the pain at home. Let your doctor decide whether it is related to pregnancy, digestion, muscles or another health concern.
- Severe Headache That Does Not Go Away
Headaches can occur because of tiredness, dehydration, stress, lack of sleep or hormonal changes. A severe or persistent headache, however, can be a pregnancy warning sign.
Contact your doctor if the headache:
- Is unusually painful
- Starts suddenly
- Does not improve with rest
- Becomes worse
- Occurs after 20 weeks
- Happens with blurred vision
- Is associated with swelling of the face or hands
- Occurs with upper abdominal pain
- Is accompanied by vomiting or confusion
A severe headache with vision changes or swelling may be linked to preeclampsia, a pregnancy complication involving high blood pressure.
Not every headache during pregnancy is serious, but a headache that is strong, new or different from your usual headaches needs medical assessment.
- Blurred Vision or Other Vision Changes
Sudden vision changes during pregnancy need prompt attention.
These may include:
- Blurred vision
- Flashing lights
- Spots in the vision
- Double vision
- Difficulty focusing
- Increased sensitivity to light
- Temporary loss of vision
Vision changes are more concerning when they occur with severe headache, sudden swelling, high blood pressure or upper abdominal pain.
These symptoms may be associated with preeclampsia or another medical condition. Do not wait until your next routine appointment if your eyesight changes suddenly.
- Sudden or Excessive Swelling
Mild swelling of the feet and ankles can be common, especially later in pregnancy. Sudden or rapidly increasing swelling may need medical assessment.
Contact your doctor if you notice:
- Sudden swelling of the face
- Puffy eyes
- Swelling of the hands or fingers
- Rapidly increasing swelling
- Swelling with severe headache
- Swelling with vision changes
- Sudden unexplained weight gain
- Painful swelling in one leg
- Redness or warmth in one leg
Sudden swelling of the face or hands may be a warning sign of preeclampsia, especially when it occurs with headache or blurred vision.
Pain, redness or swelling mainly affecting one leg may be a sign of a blood clot. Seek medical care promptly and avoid massaging the painful leg.
- Reduced or Absent Baby Movement
Baby movements often become more noticeable as pregnancy progresses. Every baby has a different pattern, so there is no single number of movements that is normal for every pregnancy.
What matters is a clear change from your baby’s usual activity.
Contact your maternity team if:
- Your baby is moving less than usual
- The movements feel weaker
- Your baby has stopped moving
- There is a sudden change in the movement pattern
- You remain worried after resting
Do not wait until the next day or your next appointment if you notice reduced baby movement.
A home Doppler should not be used to decide whether your baby is fine. Hearing a heartbeat does not replace a proper medical assessment.
- Fluid Leaking From the Vagina
A sudden gush or a continuous trickle of watery fluid may mean that your water has broken.
Sometimes it can be difficult to tell whether the fluid is amniotic fluid, urine or normal vaginal discharge. Contact your maternity team if the leakage continues or you are unsure.
Seek urgent care if:
- The fluid starts leaking before 37 weeks
- It is green, brown or blood-stained
- It has an unpleasant smell
- You also have a fever
- Baby movement has reduced
- Regular contractions begin
- There is vaginal bleeding
Note when the leakage started and the colour of the fluid, but do not delay medical care while trying to identify it at home.
- Regular Contractions Before 37 Weeks
Occasional tightening of the uterus may occur during pregnancy. These practice contractions are often irregular and may settle with rest or a change of position.
Regular or increasingly painful contractions before 37 weeks can be a sign of preterm labour.
Other possible preterm labour signs include:
- Period-like cramps
- Persistent lower back pain
- Pressure in the pelvis
- Increased vaginal discharge
- Fluid leakage
- Vaginal bleeding
- A feeling that the baby is pushing downward
- Tightenings that become stronger or closer together
Contact your doctor or maternity hospital if you develop regular contractions before 37 weeks. Do not take medicines or try home remedies to stop the contractions without medical advice.
- High Fever or Signs of Infection
A high or persistent fever during pregnancy should be assessed, especially when it occurs with other symptoms.
Contact your doctor if you have:
- Fever with chills
- Fever with abdominal pain
- Burning while passing urine
- Painful urination
- Foul-smelling vaginal discharge
- Severe weakness
- A rash
- Repeated vomiting
- Breathing difficulty
- Reduced baby movement
Infections during pregnancy may affect the urinary tract, lungs or other parts of the body. Timely assessment helps your doctor decide whether tests or treatment are required.
Do not take leftover antibiotics or medicines without medical advice.
- Severe Vomiting, Chest Pain, Breathing Difficulty or Fainting
Some symptoms affect the whole body and may require immediate medical care.
Severe or Persistent Vomiting
Nausea and vomiting are common in early pregnancy. However, repeated vomiting may lead to dehydration.
Contact your doctor if you:
- Cannot keep fluids down
- Are unable to eat
- Pass very little urine
- Have dark urine
- Feel extremely weak
- Become dizzy or faint
- Have a dry mouth
- Vomit blood
Severe vomiting during pregnancy may be linked to hyperemesis gravidarum or another medical concern. Treatment may be needed to prevent dehydration.
Mild breathlessness can occur later in pregnancy. Sudden or severe breathing difficulty is different.
Seek immediate help if you experience:
- Sudden shortness of breath
- Breathlessness while resting
- Chest pain or pressure
- Chest tightness
- A very fast heartbeat
- Coughing up blood
- Blue lips
- Chest pain with one-sided leg swelling
These symptoms may be related to a heart, lung or blood clot concern and require urgent assessment.
Fainting or Seizures
Feeling briefly light-headed can happen when standing up quickly. Losing consciousness, confusion or seizures are not normal pregnancy symptoms.
Seek emergency medical care if you:
- Faint
- Become difficult to wake
- Feel confused
- Have a seizure
- Develop repeated uncontrolled movements
- Have a severe headache before or after a seizure
A seizure during pregnancy can be associated with eclampsia or another serious medical condition.
Warning Signs in Early Pregnancy
Early pregnancy can bring nausea, tiredness and mild cramps. However, some symptoms require urgent assessment.
Important early pregnancy warning signs include:
- Heavy bleeding
- Severe abdominal cramps
- One-sided abdominal pain
- Shoulder pain
- Dizziness or fainting
- Severe vomiting
- Fever
- Sudden weakness
One-sided pain, bleeding, shoulder pain and fainting can occur with an ectopic pregnancy. Bleeding and cramping may also occur during a miscarriage.
These symptoms do not confirm a diagnosis, but they should be assessed promptly.
Warning Signs in the Second and Third Trimesters
Pregnancy warning signs that are especially important later in pregnancy include:
- Reduced baby movement
- Vaginal bleeding
- Fluid leakage
- Regular contractions before 37 weeks
- Severe headache
- Blurred vision
- Sudden swelling
- Upper abdominal pain
- High fever
- Chest pain
- Sudden breathing difficulty
Do not assume that a symptom is normal simply because your due date is approaching.
Warning Signs of Preeclampsia
Preeclampsia is a pregnancy complication that usually develops after 20 weeks. It involves high blood pressure and may affect organs such as the kidneys, liver, brain or lungs.
Possible preeclampsia warning signs include:
- Severe headache
- Blurred vision
- Flashing lights
- Sudden swelling of the face or hands
- Upper abdominal pain
- Nausea or vomiting later in pregnancy
- Shortness of breath
- High blood pressure
Some women may have few obvious symptoms. This is why regular antenatal appointments and blood pressure checks are important.
Do not wait for several symptoms to appear before contacting your doctor.
What Should You Do When a Warning Sign Appears?
When you notice a serious or unusual pregnancy symptom:
- Stop your activity and rest safely.
- Note when the symptom began.
- Check whether it is becoming worse.
- Contact your obstetrician or maternity hospital.
- Mention how many weeks pregnant you are.
- Describe all related symptoms.
- Carry your pregnancy records to the hospital.
- Ask someone to accompany you when possible.
Do not drive yourself if you feel faint, confused, severely breathless or are bleeding heavily.
Heavy bleeding, seizures, loss of consciousness, serious breathing difficulty and severe chest pain require emergency medical attention.
Can Pregnancy Complications Be Prevented?
Not every complication can be prevented, but regular pregnancy care can help identify certain risks early.
Helpful steps include:
- Attending antenatal appointments
- Completing recommended tests
- Monitoring blood pressure when advised
- Taking prescribed supplements and medicines
- Reporting new symptoms early
- Learning your baby’s movement pattern
- Following advice for a high-risk pregnancy
- Keeping hospital contact details available
Do not miss appointments because you feel well. Some pregnancy complications may initially have few or no obvious symptoms.
Final Thoughts
Pregnancy symptoms can sometimes be confusing. A symptom may turn out to be harmless, but it is always safer to ask your doctor than to ignore something that feels severe, sudden or unusual.
Important pregnancy warning signs include vaginal bleeding, severe abdominal pain, persistent headache, vision changes, sudden swelling, reduced baby movement, fluid leakage, early contractions, fever, severe vomiting, chest pain, breathing difficulty, fainting and seizures.
Listen to your body and contact your maternity care team whenever something does not feel right.
Chest Pain or Breathing Difficulty
Mild breathlessness can occur later in pregnancy. Sudden or severe breathing difficulty is different.
Seek immediate help if you experience:
- Sudden shortness of breath
- Breathlessness while resting
- Chest pain or pressure
- Chest tightness
- A very fast heartbeat
- Coughing up blood
- Blue lips
- Chest pain with one-sided leg swelling
These symptoms may be related to a heart, lung or blood clot concern and require urgent assessment.
Fainting or Seizures
Feeling briefly light-headed can happen when standing up quickly. Losing consciousness, confusion or seizures are not normal pregnancy symptoms.
Seek emergency medical care if you:
- Faint
- Become difficult to wake
- Feel confused
- Have a seizure
- Develop repeated uncontrolled movements
- Have a severe headache before or after a seizure
A seizure during pregnancy can be associated with eclampsia or another serious medical condition.
Warning Signs in Early Pregnancy
Early pregnancy can bring nausea, tiredness and mild cramps. However, some symptoms require urgent assessment.
Important early pregnancy warning signs include:
- Heavy bleeding
- Severe abdominal cramps
- One-sided abdominal pain
- Shoulder pain
- Dizziness or fainting
- Severe vomiting
- Fever
- Sudden weakness
One-sided pain, bleeding, shoulder pain and fainting can occur with an ectopic pregnancy. Bleeding and cramping may also occur during a miscarriage.
These symptoms do not confirm a diagnosis, but they should be assessed promptly.
Warning Signs in the Second and Third Trimesters
Pregnancy warning signs that are especially important later in pregnancy include:
- Reduced baby movement
- Vaginal bleeding
- Fluid leakage
- Regular contractions before 37 weeks
- Severe headache
- Blurred vision
- Sudden swelling
- Upper abdominal pain
- High fever
- Chest pain
- Sudden breathing difficulty
Do not assume that a symptom is normal simply because your due date is approaching.
Warning Signs of Preeclampsia
Preeclampsia is a pregnancy complication that usually develops after 20 weeks. It involves high blood pressure and may affect organs such as the kidneys, liver, brain or lungs.
Possible preeclampsia warning signs include:
- Severe headache
- Blurred vision
- Flashing lights
- Sudden swelling of the face or hands
- Upper abdominal pain
- Nausea or vomiting later in pregnancy
- Shortness of breath
- High blood pressure
Some women may have few obvious symptoms. This is why regular antenatal appointments and blood pressure checks are important.
Do not wait for several symptoms to appear before contacting your doctor.
What Should You Do When a Warning Sign Appears?
When you notice a serious or unusual pregnancy symptom:
- Stop your activity and rest safely.
- Note when the symptom began.
- Check whether it is becoming worse.
- Contact your obstetrician or maternity hospital.
- Mention how many weeks pregnant you are.
- Describe all related symptoms.
- Carry your pregnancy records to the hospital.
- Ask someone to accompany you when possible.
Do not drive yourself if you feel faint, confused, severely breathless or are bleeding heavily.
Heavy bleeding, seizures, loss of consciousness, serious breathing difficulty and severe chest pain require emergency medical attention.
Can Pregnancy Complications Be Prevented?
Not every complication can be prevented, but regular pregnancy care can help identify certain risks early.
Helpful steps include:
- Attending antenatal appointments
- Completing recommended tests
- Monitoring blood pressure when advised
- Taking prescribed supplements and medicines
- Reporting new symptoms early
- Learning your baby’s movement pattern
- Following advice for a high-risk pregnancy
- Keeping hospital contact details available
Do not miss appointments because you feel well. Some pregnancy complications may initially have few or no obvious symptoms.
Final Thoughts
Pregnancy symptoms can sometimes be confusing. A symptom may turn out to be harmless, but it is always safer to ask your doctor than to ignore something that feels severe, sudden or unusual.
Important pregnancy warning signs include vaginal bleeding, severe abdominal pain, persistent headache, vision changes, sudden swelling, reduced baby movement, fluid leakage, early contractions, fever, severe vomiting, chest pain, breathing difficulty, fainting and seizures.
Listen to your body and contact your maternity care team whenever something does not feel right.
FAQs:
Important warning signs include heavy bleeding, severe abdominal pain, persistent headache, blurred vision, sudden swelling, reduced baby movement, leaking fluid, early contractions, fever and breathing difficulty.
Seek immediate care for heavy bleeding, severe pain, seizures, fainting, chest pain, serious breathing difficulty, fluid leakage or absent baby movement.
Not always. Light spotting may occur, especially in early pregnancy. However, bleeding should be reported to a doctor, particularly when it is heavy or painful.
Pain needs assessment when it is severe, persistent, one-sided or accompanied by bleeding, fever, vomiting, dizziness or shoulder pain.
A mild occasional headache may occur. A severe or persistent headache, especially with blurred vision or swelling, should be assessed urgently.
Contact your obstetrician or maternity hospital promptly. Do not wait until your next routine appointment.
It may feel like a sudden gush or a continuous trickle of watery fluid. Contact your maternity team if the leakage continues or you are unsure.
Regular or painful contractions before 37 weeks may be a sign of preterm labour and require medical advice.
Seek medical help if you cannot keep fluids down, pass very little urine, feel faint or show signs of dehydration.
Possible signs include severe headache, vision changes, sudden swelling, upper abdominal pain, breathlessness and high blood pressure.