Why there is no target number

The RCOG is explicit: "There is no specific number of movements that is considered normal. During your pregnancy, you need to be aware of your baby's individual pattern of movements. A reduction or a change in your baby's movements is what is important."

The NHS says the same thing and draws the practical conclusion: "There's no set number of movements you should feel each day - every baby is different. You do not need to count the number of kicks or movements you feel each day. The important thing is to get to know your baby's usual pattern of movements from day to day."

This is not vagueness. It is the guidance choosing a sensitive trigger over a specific one, because the research has not produced a threshold that performs better than a mother's own sense of change.

What normal movement patterns actually do

Knowing this makes the change easier to recognise. From the RCOG:

Most women first notice movements at 18 to 20 weeks; later than 20 weeks is common in a first pregnancy, and as early as 16 weeks if you have been pregnant before.
Babies have sleep periods that "mostly last between 20 and 40 minutes, and are rarely longer than 90 minutes". They will usually not move during these.
"The number of movements tends to increase until 32 weeks of pregnancy and then stay about the same, although the type of movement may change as you get nearer to your due date."
"You should continue to feel your baby move right up to the time you go into labour. Your baby should move during labour too."

That last point matters because the belief that babies "run out of room" and go quiet near term is one of the most persistent and most dangerous pieces of folklore in pregnancy. Movements should not tail off.

Some things genuinely affect what you feel: being busy or active, an anterior placenta, or your baby's back lying at the front of your uterus. Position - head down or breech - does not.

What happens when you call, by gestation

The RCOG sets out three different responses, which is why the answer to "what will they do?" depends on how many weeks you are.

Before 24 weeks

"If by 24 weeks you have never felt your baby move, you should contact your midwife or local maternity unit, who will check your baby's heartbeat. An ultrasound scan may be arranged and you may be referred to a specialist fetal medicine centre."

24 to 28 weeks

You will have your baby's heartbeat checked and "a full antenatal check-up that includes checking the size of your uterus, measuring your blood pressure and testing your urine for protein." If your uterus measures smaller than expected, a growth scan may be arranged.

After 28 weeks

"You must contact your midwife or local maternity unit immediately. You must not wait until the next day to seek help." You will be asked about the movements, have a full antenatal check, and your baby's heart rate will be monitored "usually for at least 20 minutes". You should be able to see the heart rate rise as your baby moves. Most women go home reassured after this.

The NHS repeats the timing instruction in its own words: "Do not wait until the next day - call immediately, even if it's the middle of the night."

What the scan is looking for

A scan is not automatic. The RCOG lists three triggers for arranging one: your uterus measures smaller than expected; your pregnancy has risk factors associated with stillbirth; or "the heart-rate monitoring is normal but you still feel that your baby's movements are less than usual."

The scan checks "the growth of your baby as well as the amount of amniotic fluid around your baby", and "is normally performed within 24 hours of being requested". Growth and liquor volume are the two things that most often reveal a placenta that is not working well.

Kick charts and home dopplers

Two pieces of equipment that feel helpful and are not.

On counting charts, the RCOG's position is: "There is not enough evidence to recommend the routine use of a movement chart. It is more important for you to be aware of your baby's individual pattern of movements throughout your pregnancy and you should seek immediate help if you feel that the movements are reduced or changed."

On home dopplers, the NHS is blunter than it is about almost anything else: "Do not use a home doppler (heartbeat listening kit) to try to check the baby's heartbeat yourself. This is not a reliable way to check your baby's health. Even if you hear a heartbeat, this does not mean your baby is well." The RCOG's version: "Do not rely on any home kits you may have for listening to your baby's heartbeat."

The failure mode is specific. A doppler can pick up your own pulse, or a heartbeat that is present but from a baby who is unwell, and the reassurance it produces is what delays the phone call.

What your maternity team should already be doing

NICE guideline NG201 makes movements a routine agenda item rather than something you have to raise. Recommendation 1.2.34 asks clinicians to discuss babies' movements after 24+0 weeks, to "ask if she has any concerns about her baby's movements at each antenatal contact after 24+0 weeks", to advise contacting maternity services "at any time of day or night", and to assess mother and baby if there are any concerns.

If it happens again

The most common mistake after a reassuring first assessment is treating the second episode as less urgent. The RCOG addresses this directly: "should your baby have another episode of reduced movements, you must again contact your midwife or local maternity unit immediately. You should never hesitate to contact your midwife or local maternity unit for advice, no matter how many times this happens."

Green-top Guideline No. 57 exists precisely to standardise this care, and notes that "many of the recommendations are graded lower owing to the available evidence" - an honest acknowledgement that the certainty here is lower than anyone would like. That uncertainty is an argument for calling sooner, not later. Most women who have one episode of reduced movements go on to have a straightforward pregnancy and a healthy baby.

Reduced Fetal Movements