10 November 2025 · Jennifer Wijaya
Finance Director · Mother of one, expecting
How Soon Can You Feel a Baby Move in a Second Pregnancy?
First-time mothers usually notice movement between 18 and 22 weeks. Second time it's commonly 2 to 4 weeks earlier, often 16 to 18, occasionally as early as 14.
The baby isn't moving sooner. You're recognising it sooner. I'm 22 weeks with my second as I write this and I felt her at 16, which caught me completely by surprise.
Why it comes earlier the second time
| Reason | What is happening |
|---|---|
| You know what you are feeling for | First time, early movement gets filed under digestion. Second time it is unmistakable. |
| Abdominal muscles have stretched before | Less is between the uterus and your hand. |
| The uterus is differently | It often rises out of the pelvis a little earlier after a previous pregnancy. |
| You're paying attention | You learned in the first pregnancy that this matters. |
Only one of those is about the baby. Hold on to that if you're comparing pregnancies.
What early movement feels like
Rarely a kick. The vocabulary people reach for is consistent: bubbles, popcorn, a butterfly, a muscle twitching, a fish turning over.
Easiest to notice sitting still or lying down. Easiest to miss when busy, which, second time, is essentially all the time.
Why there's no magic number, and what the evidence says
Search this and you'll be told to count 10 movements in 2 hours. That rule is widely repeated and it isn't what current guidance says, and the distinction is big enough to set out properly. What counts is a change from your own baby's established pattern, because there's no threshold number that is normal for everybody. Babies differ enormously in how much they move, and a baby who does 40 movements in an hour and a baby who does 8 can both be entirely well. I'd guess mine does about 20. I haven't counted properly. Your pattern is the baseline. A departure from it is the signal. The uncomfortable part: a large randomised trial published in 2018 tested a care package built around awareness of fetal movements, including formal counting, across dozens of hospitals and around 400,000 births, and it didn't reduce stillbirth. That surprised a lot of people and has shaped guidance since.
It doesn't mean movements don't matter. Reduced movement remains an established warning sign and every maternity service takes it seriously. What the trial suggests is that formal counting protocols aren't the helpful part. Attention to a change, and prompt contact when there's one, is.
| If | Then |
|---|---|
| Movements feel reduced or different from her pattern | Call your maternity unit now, at any hour |
| It's the middle of the night | Still call. They expect this and would rather you did |
| It has happened before and was fine | Call again. Previous reassurance doesn't carry forward |
| Somebody suggests cold water, sugar or lying down first | Skip it. None of that is a substitute and it costs time |
| You feel you're making a fuss | Call anyway. Maternity units say this explicitly and mean it |
On the second-pregnancy question specifically: movements are usually noticed earlier, often around 16 to 18 weeks against 18 to 20 in a first, and the reason is recognition, nothing different about the baby. You know what you're feeling for.
What doesn't change is the response. An earlier start doesn't mean an earlier baseline you can rely on. Reduced movements at any stage are a same-hour phone call, never wait-and-see.
Elsewhere in pregnancy
What changes when it gets noticed
| Factor | Effect on when you notice |
|---|---|
| An anterior placenta | Sits between baby and abdominal wall and cushions movement. Noticing can be several weeks later even in a second pregnancy. |
| Body shape | Affects how much sensation reaches the surface. |
| How busy you are | Chasing a toddler is the commonest reason a second-time mother notices later. |
| The individual baby | Varies as much as anything else in pregnancy. |
The part that counts more
When movements start is interesting. What they do from around 24 to 28 weeks onward is clinically important, and there's a persistent and dangerous myth attached.
Babies don't move less towards the end of pregnancy. They have less room, so the movements change character, more rolling and stretching, fewer sharp kicks, and the frequency shouldn't reduce. Anybody who tells you slowing down near term is normal is repeating something current guidance specifically contradicts.
What to do about reduced movements
This counts for more than everything above it. Read it once now, while nothing is wrong.
| Do | Do not |
|---|---|
| Learn your own baby's pattern | Count to a target number. There's no universal figure |
| Contact your maternity unit straight away | Wait until tomorrow, or until after a lie-down |
| Go in, every time, including repeatedly | Try to provoke movement with cold drinks or sugar first |
| Trust the instinct that something has changed | Use a home doppler to reassure yourself |
On the doppler: finding a heartbeat doesn't mean the baby is well, and false reassurance from a home device has caused real harm. You're never wasting anyone's time. Maternity units are explicit that they'd far rather see you.
Second pregnancies, generally
A few other things arrive earlier as well: showing, Braxton Hicks, and the pelvic heaviness of later pregnancy. Fatigue is worse, largely because there's a small person to look after and much less chance to rest. Labour is often, though not reliably, shorter.
The one thing that doesn't carry over is certainty. Every pregnancy is its own. A second one being different from the first isn't evidence anything is wrong, and it's also not a reason to override an instinct that something has changed.
The numbers people ask for
Should I count kicks in pregnancy?
Current guidance doesn't recommend a fixed number such as ten movements in 2 hours. A large 2018 randomised trial of a care package built around formal counting didn't reduce stillbirth. What counts is knowing your own baby's pattern and contacting your maternity unit promptly if it changes.
When should I call about reduced movements?
Immediately, at any hour, every time, including if it has happened before and everything was fine. Don't try cold drinks or lying down first; that costs time and isn't a substitute for being checked.
When do you feel movement in a second pregnancy?
Commonly 16 to 18 weeks, sometimes as early as 14, usually 2 to 4 weeks earlier than a first pregnancy. The baby isn't moving sooner. You recognise the sensation because you've felt it before, and stretched abdominal muscles transmit it more readily.
Does an anterior placenta delay feeling movement?
Yes. A placenta at the front of the uterus cushions the sensation, and can delay noticing by several weeks even in a second pregnancy. It's a normal position and not a problem in itself.
Do babies move less at the end of pregnancy?
No, and this is an important myth to discard. Movements change character as space reduces, more rolling, fewer sharp kicks. But they shouldn't become less frequent. Reduced movement at any stage needs same-day contact with your maternity unit.
What should I do if movements have reduced?
Contact your maternity unit immediately. Don't wait, and don't try to provoke movement with cold drinks or sugar first. Don't use a home doppler, finding a heartbeat isn't evidence the baby is well. Units would far rather assess you unnecessarily.
References
- Norman et al. (2018), The Lancet 392:1629-1638, Awareness of fetal movements and care package to reduce fetal mortality (AFFIRM): a stepped wedge, cluster-randomised trial
- RCOG Green-top Guideline No. 57: Reduced Fetal Movements
- NHS. Your baby's movements in pregnancy
- Tommy's. Baby movements during pregnancy
This guide is general information, written to help you understand a topic and ask better questions. It is not medical advice and does not replace your own doctor, midwife or paediatrician. Anything that worries you about your baby belongs with them.