GUIDE

Pregnancy Warning Signs: What to Act On, and How Fast

Sorted into three levels of urgency, from go now, through call today, to mention at your next visit.

Reviewed by Dr. Grishma Ranjangaonkar, MBBS, DGO, ICOG Fellowship in Gynecological Endoscopy · Eva WomanCare Clinic, Vashi

Most pregnancy symptoms are uncomfortable and harmless. A small number are neither, and the hard part is that some of the serious ones feel mild: pre-eclampsia often has no symptoms until it is advanced, and reduced fetal movement does not hurt. This guide is about sorting them.

If you are worried right now Heavy bleeding, fainting, a seizure, severe constant abdominal pain or difficulty breathing means going to an emergency department now, not reading further. For anything else in the second list below, phone the clinic today. You will not be wasting anybody time.

The three levels of urgency

Most pregnancy symptoms are uncomfortable and harmless. A small number are neither, and the difficulty is that some of the serious ones feel mild. Pre-eclampsia often has no symptoms at all until it is advanced. Reduced fetal movement does not hurt. This guide sorts what you might notice into three groups, and the sorting is the useful part.

Which row does it belong inIf you are unsure between two rows, act on the higher one. Over-reporting costs an afternoon. Under-reporting is the pattern behind most preventable harm in pregnancy.

Go now: the emergencies

These need an emergency department or an ambulance, not a phone call and a wait for a callback.

What you notice	What it can mean	What to do
Heavy bleeding, soaking a pad in an hour, or passing clots	Miscarriage, placental abruption, or placenta praevia depending on the stage	Go now. Take a note of how much and since when
Severe constant abdominal pain, not coming in waves	Abruption, or in early pregnancy an ectopic	Go now. Constant is the key word, as opposed to contractions that come and go
Sharp one-sided pain with shoulder-tip pain in early pregnancy	Ectopic pregnancy, which is a surgical emergency	Go now. Shoulder-tip pain with abdominal pain is a red flag combination
Fainting, collapse, or feeling you are about to pass out	Blood loss, very low blood pressure, or a cardiac cause	Go now, and do not drive yourself
A fit or seizure	Eclampsia	Ambulance. This is an emergency at any stage
Difficulty breathing or chest pain	Clot in the lung, or a cardiac cause. Pregnancy raises clot risk	Go now, particularly after a long flight, bed rest or surgery
Painful, hot, swollen calf, usually one side	Deep vein thrombosis	Go now, and do not massage the leg

Call today: do not wait for your next visit

What you notice	What it can mean	What to do
Reduced or changed fetal movements	The most important warning sign in the second half of pregnancy, and the most commonly delayed	Phone now, whatever the hour. Every maternity unit expects these calls
Any vaginal bleeding, even light spotting	Often nothing, sometimes not. It also determines whether an Rh negative woman needs an injection	Call today so it is documented and assessed
A gush or trickle of fluid	Waters breaking. Colour matters: clear or straw is expected, green or brown is not	Call today. Note the time and the colour, and do not use a tampon
Severe or persistent headache, flashing lights, blurred vision	Pre-eclampsia, particularly with high blood pressure	Call today. A headache that painkillers do not touch is the one to act on
Pain under the ribs on the right side	Liver involvement in pre-eclampsia. Frequently mistaken for indigestion	Call today
Sudden swelling of the face or hands	Pre-eclampsia. Different from gradual swelling of the feet	Call today
Fever above 38 degrees	Infection, which can affect the pregnancy directly	Call today rather than starting anything from the medicine cupboard
Burning or stinging on passing urine	Urinary infection, which in pregnancy can reach the kidneys quickly	Call today. These need treating rather than waiting out
Regular tightenings before 37 weeks	Preterm labour	Call today, particularly more than four in an hour
Persistent vomiting, unable to keep fluids down	Hyperemesis and dehydration	Call today
Itching, especially palms and soles, worse at night	Obstetric cholestasis, a liver condition of pregnancy	Call today. It needs a blood test, not a cream

Two of these get dismissed most often Right-sided pain under the ribs gets treated as indigestion, and intense itching of the palms and soles at night gets treated as dry skin. Both have specific obstetric causes and both are picked up with a simple blood test. If you have either, say so explicitly rather than mentioning it in passing.

Mention it at your next visit

These are common, usually harmless, and still worth writing down so they are not forgotten in the room.

Gradual swelling of the feet and ankles that is worse by evening and better by morning.
Heartburn, constipation, bloating and wind.
Round ligament twinges: a sharp catch low on one side when you stand or turn quickly.
Braxton Hicks tightenings that are irregular and ease with rest.
Back pain, pelvic girdle discomfort and difficulty sleeping.
Bleeding gums, nosebleeds and nasal congestion.
Leg cramps at night, and restless legs.
Vivid dreams, forgetfulness and mood swings.

If you want a structured way to work out which group something falls into, our symptom checker takes you through 42 symptoms and tells you how urgently each should be seen.

Reduced movements: the one that gets missed

This is the single most important thing to act on in the second half of pregnancy, and it is the one women most often delay on, usually because it does not hurt and because they do not want to make a fuss. A change in your baby usual pattern of movement is a reason to be assessed the same day, every time it happens, including if it has happened before and everything was fine.

What to do if movements have changedThe count is a prompt to call, not a test you can pass. If the pattern has changed, call even when you reach ten movements.

Two pieces of advice to ignore Babies do not move less towards the end. Space runs out, so the character changes from somersaults to stretches and pushes, but the number should not fall. And do not drink something cold or sugary to make the baby move and then feel reassured. That habit delays presentation, has no evidence behind it, and is the reason some women arrive later than they should.

Bleeding, and what it means at each stage

Bleeding is the symptom that frightens women most, and the honest answer is that it means different things at different points. All of it should be reported. Not all of it is bad news.

When	Common causes	How urgent
Before 12 weeks	Implantation spotting, a sensitive cervix, or threatened miscarriage. Light spotting occurs in about one in four pregnancies and most continue normally	Call today. Go now if it is heavy, or comes with one-sided or shoulder-tip pain
12 to 24 weeks	Cervical causes, infection, or less commonly placental problems	Call today, always
After 24 weeks	Placenta praevia, placental abruption, or a show if you are near term	Go now for anything more than light spotting. Do not wait to see whether it settles
With pain and a hard, tender abdomen	Placental abruption, where the placenta separates early	Go now. This is an emergency at any stage after the first trimester
After sex	Usually a sensitive cervix, which is common and harmless	Call today so it is documented and the cervix can be checked

If you are Rh negative Any bleeding in pregnancy is a reason to be seen promptly, because you may need an anti-D injection within a set window. This protects not only this pregnancy but future ones. It is one of the clearest reasons never to sit on bleeding and hope it settles.

Pre-eclampsia: the signs that arrive before the diagnosis

Pre-eclampsia is the reason your blood pressure and urine are checked at every single antenatal visit. It usually produces no symptoms until it is well advanced, which is why the checks matter more than how you feel, and why skipping appointments in a pregnancy that feels fine is a genuinely bad idea.

A severe or persistent headache, particularly one that painkillers do not touch.
Visual disturbance: flashing lights, spots, blurring or briefly losing part of your vision.
Pain under the ribs on the right side, often mistaken for indigestion.
Sudden swelling of the face, hands or fingers, as distinct from feet that swell gradually by evening.
Vomiting that arrives in the second half of pregnancy, having settled earlier.
A sudden jump in weight over a few days, which is fluid rather than fat.

Risk is higher in a first pregnancy, with a previous history of it, with chronic high blood pressure, kidney disease or diabetes, with twins, over 40, and with a BMI above the Indian cut-off. If any of those apply to you, ask specifically what your plan is, because low-dose aspirin from the second trimester is offered in some cases and it has to be started early to help.

Preterm labour before 37 weeks

Getting seen early matters here, because treatment that can delay delivery and steroids that mature the baby lungs both work best given in time.

Regular tightenings before 37 weeks, particularly more than four in an hour.
Persistent low back ache that comes in waves rather than staying constant.
Pelvic pressure, as if the baby is pushing down.
A change in vaginal discharge: a sudden increase, or discharge that becomes watery, mucus-like or bloody.
Waters breaking, as a gush or a slow trickle.
Menstrual-like cramping that does not settle with rest and a change of position.

Infection: the signs that get underplayed

Pregnancy alters immunity, and infections that would be minor otherwise can escalate. Two in particular are worth naming.

Urinary infections are more common in pregnancy because progesterone relaxes the urinary tract and the uterus presses on it. Burning, stinging, needing to pass urine constantly, cloudy or strong-smelling urine, or pain in the lower back or side all need treating rather than waiting out. Untreated they can reach the kidneys and trigger preterm labour.

Fever above 38 degrees at any stage warrants a call rather than a paracetamol and a wait. In the first trimester a sustained high fever carries its own risk to development, and at any stage the cause matters more than the temperature.

After the birth: the six weeks nobody warns you about

Almost all pregnancy advice stops at delivery, which is why postnatal warning signs get missed. Some of the most serious complications of pregnancy happen after it.

What you notice	What it can mean	How urgent
Bleeding that soaks a pad in an hour, or large clots	Postpartum haemorrhage	Go now
Fever, chills, or foul-smelling discharge	Infection of the uterus or a wound	Call today
A red, hot, painful area on one breast with fever	Mastitis	Call today. Keep feeding from that side unless told otherwise
Severe headache, visual changes, or swelling	Pre-eclampsia can appear or worsen after delivery, up to about six weeks	Go now
Painful, swollen calf, or chest pain and breathlessness	Clot in the leg or lung. Risk stays raised for weeks after birth	Go now
A wound that opens, oozes or becomes increasingly painful	Wound infection or breakdown	Call today
Feeling unable to cope, hopeless, or frightened of your own thoughts	Postnatal depression or, rarely, postpartum psychosis	Call today. This is a medical condition, not a character failure

The one nobody says out loud If you are having thoughts of harming yourself or your baby, tell someone today: your doctor, your partner, anyone. This is treatable and it is more common than you have been led to believe. It is not a sign that you are a bad mother, and saying it out loud is what starts the help.

What to say when you call

Having these four things ready makes the call faster and gets you the right advice sooner. Keep them written in the same place as your antenatal card.

How many weeks pregnant you are, and whether this is a first pregnancy.
What you have noticed, and exactly when it started. Times matter more than adjectives.
For bleeding: how much, using pads as the measure. For fluid: the colour. For movements: what your usual pattern is and how today differs.
Anything relevant in your history: previous caesarean, high blood pressure, diabetes, Rh negative blood group, twins, or a previous preterm birth.

You are not making a fuss Maternity units expect these calls and would far rather see you and send you home than have you sit on something at 2 am. Being reassured is the normal outcome. If you find yourself deciding whether a symptom is worth mentioning, that hesitation is itself the reason to call.

This guide is general information for recognising when to seek help and does not replace the plan your own doctor has made with you. If you have been given specific instructions because of your own history, those take priority over anything here. In an emergency, go to the nearest emergency department rather than waiting for a callback.

Tools and guides that go with this

Symptom Checker

Tick what you are experiencing across 42 symptoms and see how urgently it should be seen.

Third Trimester Guide

Counting movements, baby position, and telling real labour from false.

Pregnancy Tests Guide

Why blood pressure and urine are checked every visit, and what each test is looking for.

First Trimester Guide

Early pregnancy warning signs in context, week by week.

When in doubt, call

Being seen and told everything is fine is the expected outcome and the entire point. If something has changed and you are hesitating about whether it counts, that hesitation is the reason to pick up the phone.

Questions about warning signs

What is the single most important sign to act on?

A change in your baby usual pattern of movement, in the second half of pregnancy. It is the most important and the most commonly delayed, because it does not hurt and because women do not want to make a fuss. Call the same day, every time, including if it has happened before and everything was fine. Do not wait until morning, and do not try to make the baby move with something cold or sugary first.

Is it normal to have some spotting?

Light spotting happens in around one in four pregnancies and the majority continue normally. It can be implantation, a sensitive cervix, or nothing identifiable. All of it should still be reported, both so it is documented and because an Rh negative woman may need an anti-D injection within a set window. Heavy bleeding, bleeding with pain, or any bleeding after 24 weeks is different and needs immediate attention.

How do I tell pre-eclampsia from normal pregnancy discomfort?

Often you cannot, which is exactly why blood pressure and urine are checked at every visit. The signs worth acting on are a headache that painkillers do not touch, flashing lights or blurred vision, pain under the ribs on the right side, and sudden swelling of the face or hands. Gradual swelling of the feet by evening is ordinary. Sudden puffiness of the face is not.

When is swelling a problem?

Gradual swelling of the feet and ankles that is worse by evening and better after a night in bed is normal and very common in Indian summers. Sudden swelling, particularly of the face, hands or fingers, or swelling that arrives with a headache or visual changes, needs a call the same day. Swelling of one calf that is hot and painful is different again and needs immediate attention, because it can be a clot.

My waters may have broken but I am not sure. What now?

Call rather than waiting to find out. Note the time and the colour: clear or straw coloured is expected, green, brown or heavily bloodstained is not and needs immediate attention. Do not use a tampon and avoid baths, because once the membranes are open the risk of infection rises with time. If you are before 37 weeks, treat it as more urgent, not less.

Do warning signs stop after the baby is born?

No, and this is the part most people are never told. Serious bleeding, infection, clots and pre-eclampsia can all appear or worsen in the six weeks after delivery. So can postnatal depression. Heavy bleeding, fever, a hot painful calf, chest pain, severe headache or visual changes after birth all need acting on with the same urgency as during the pregnancy.

I keep calling and being told it is fine. Should I stop?

No. Being reassured repeatedly is the expected outcome of a system that is working. Reduced movements in particular should be reported every single time, however often it happens, and no maternity unit will hold it against you. The pattern behind most preventable harm in pregnancy is women deciding not to call, not women calling too much.