Pregnancy Warning Signs: Symptoms, Causes & Which Doctor to See

Which pregnancy symptoms are normal and which are not?

Many changes in pregnancy are uncomfortable but expected: morning sickness in the first trimester, tiredness, mild backache, heartburn, mild swelling of the feet by evening, frequent urination and occasional tightening of the womb (Braxton Hicks contractions) later on. These are worth mentioning at your antenatal visit but usually do not need urgent care.

Warning signs differ in that they are sudden, severe, persistent or new. They can point to conditions such as miscarriage, ectopic pregnancy, pre-eclampsia, placental problems, infection, preterm labour or blood clots. When in doubt, call your obstetrician; it is always reasonable to be checked.

• Expected: mild nausea, tiredness, mild ankle swelling, heartburn
• Expected: occasional painless tightening late in pregnancy
• Not expected: bleeding, leaking fluid or severe pain
• Not expected: sudden swelling of face or hands
• Not expected: fewer or no baby movements
• Not expected: fever, fits or breathlessness

What are the danger signs in each trimester?

In early pregnancy, bleeding with cramping may signal a miscarriage, and one-sided pain, shoulder-tip pain or fainting may signal an ectopic pregnancy. Vomiting so severe that you cannot keep fluids down (hyperemesis gravidarum) can cause dehydration and needs treatment.

From about 20 weeks, pre-eclampsia becomes a concern: severe headache, blurred vision or flashing lights, pain below the ribs, sudden swelling and vomiting. In later pregnancy, watch for reduced baby movements, leaking fluid, bleeding, regular contractions before 37 weeks, and intense itching of the palms and soles, which can indicate a liver condition called obstetric cholestasis.

• First trimester: bleeding, cramping, one-sided pain, fainting, severe vomiting
• Second trimester: bleeding, leaking fluid, headache, visual changes, contractions
• Third trimester: reduced movements, high blood pressure symptoms, labour before 37 weeks
• Any time: fever, burning urine, calf pain, breathlessness

Which pregnancy symptoms are an emergency?

Some symptoms need care within the hour. If any of the following apply, go to the nearest emergency department or maternity unit, or call 112 or 108. Do not drive yourself, and take your antenatal records and the Mother and Child Protection card if you have one.

If you notice your baby moving less than usual, do not wait until the next day or try to check the heartbeat with a home device. Contact your maternity team straight away, even at night.

• Heavy vaginal bleeding or bleeding with pain
• A gush or steady trickle of fluid from the vagina
• Severe headache, blurred vision or flashing lights
• Fits (convulsions) or loss of consciousness
• Severe abdominal pain or pain below the ribs
• Fewer, weaker or no baby movements
• Chest pain, breathlessness or coughing blood
• High fever or feeling very unwell
• Thoughts of harming yourself or your baby
• Vomiting so severe you cannot keep any fluids down for a day

Which doctor should I see for pregnancy symptoms?

Your obstetrician manages pregnancy and is the right doctor for any worrying symptom. At Lotus, the obstetrics and gynaecology team provides antenatal care and assesses symptoms between scheduled visits. Keep your obstetrician’s contact number and the details of the nearest maternity emergency unit saved on your phone and with a family member.

For non-emergency concerns such as mild swelling, persistent itching without a rash, painful urination, mild bleeding gums or worry about weight gain, contact the team the same day or book an earlier appointment rather than waiting for your scheduled visit.

If you are travelling or visiting family outside Bengaluru in late pregnancy, carry your reports and find the nearest maternity unit at your destination in advance.

• Any bleeding in pregnancy
• Burning or pain on passing urine
• New itching, especially on palms and soles
• Persistent vomiting
• Swelling that is worse than usual
• Anxiety or low mood

What happens when you are checked for a warning sign?

The doctor or midwife asks about your symptoms, the date of your last scan and your pregnancy history, then checks blood pressure, pulse, temperature and urine for protein and infection. In later pregnancy they listen to the baby’s heartbeat and often record a cardiotocograph (CTG), a non-stress test that monitors the heart rate and contractions.

Depending on findings, a speculum examination may check for bleeding or fluid leakage, and an ultrasound may assess the baby’s growth, fluid, placenta position and blood flow. You will be told whether you can go home with a plan or need to stay for observation or treatment.

• Bring all antenatal reports and scans
• Note when symptoms started
• Track your baby’s movements before arriving
• Bring your blood group and any medicines
• Have a family member accompany you

Which tests are done for pregnancy warning signs?

Tests depend on the symptom. For suspected pre-eclampsia, blood pressure readings, urine protein and blood tests of platelets, liver and kidney function are key. For bleeding, ultrasound and a blood count are common, along with checking your blood group and Rh status.

Itching may need bile acid and liver tests. Fever or burning urine needs urine culture and blood tests; during the monsoon, dengue and malaria tests may be needed. Reduced movements are assessed with CTG and ultrasound.

• Blood pressure and urine protein
• Blood count, platelets, liver and kidney tests
• Ultrasound and Doppler studies
• CTG (non-stress test)
• Urine culture
• Bile acids for itching
• Dengue or malaria tests when there is fever in the monsoon
• Ultrasound in pregnancy does not use radiation

How are pregnancy complications treated?

Treatment is tailored to the cause and to how far along the pregnancy is. High blood pressure is treated with medicines that are safe in pregnancy, with close monitoring of mother and baby. Severe pre-eclampsia is managed in hospital, may involve magnesium sulphate to prevent fits, and sometimes needs early delivery.

Women with Rh-negative blood who bleed may need an anti-D injection. Infections are treated with pregnancy-safe antibiotics. Severe vomiting is treated with fluids and anti-sickness medicines. If preterm birth is likely, steroid injections help the baby’s lungs. Your obstetrician will explain each step and the reasoning.

• Blood pressure medicines safe in pregnancy
• Hospital care and magnesium sulphate for severe pre-eclampsia
• Anti-D for Rh-negative mothers when indicated
• Antibiotics for infections
• Intravenous fluids for severe vomiting
• Steroids and monitoring if early birth is likely
• Planned or early delivery when safer for mother or baby

How can I reduce the risk of complications in pregnancy?

Regular antenatal care is the single most important step. WHO recommends at least eight antenatal contacts during pregnancy. Take iron, folic acid and calcium supplements as prescribed. Women at higher risk of pre-eclampsia may be advised to take low-dose aspirin from early pregnancy; only take it if your obstetrician recommends it.

In Bengaluru, protect yourself from mosquito bites during the monsoon, because dengue and malaria can be more serious in pregnancy. Drink safe, boiled or filtered water and avoid uncovered street food to reduce the risk of hepatitis and typhoid. Stay well hydrated in hot weather, keep your blood sugar and blood pressure checks up to date, and plan your route to the maternity unit, allowing for traffic.

• Attend every antenatal visit and scan
• Take prescribed iron, folic acid and calcium
• Use mosquito repellent and nets
• Drink safe water and eat freshly cooked food
• Know your blood group and keep reports handy
• Keep a hospital bag and transport plan ready from 34 weeks

What warning signs matter after delivery, and when should I follow up?

Warning signs continue for six weeks after birth. Heavy bleeding that soaks a pad in an hour, foul-smelling discharge, fever, severe headache, chest pain, breathlessness, a painful swollen leg, or thoughts of self-harm need urgent care.

Attend all postnatal checks, have your blood pressure monitored if you had pre-eclampsia, and follow up on blood sugar if you had gestational diabetes. Discuss contraception and spacing before your next pregnancy.

• Postnatal check within the first weeks
• Blood pressure follow-up after pre-eclampsia
• Blood sugar test after gestational diabetes
• Support for low mood or anxiety