14 Weeks Pregnant
Reviewed by Safi Allah Khan
Medically reviewed by: Safi Allah Khan · Written by the Momi team · Last updated 20 October 2026
Quick answer: At 14 weeks pregnant, your baby is about the size of a nectarine, about 8.7 cm (3.4 in) long. You're in the second trimester, in month 4, with 26 weeks to go until your due date. This week's milestone: second trimester begins. Symptoms vary from person to person.
| Week 14 at a glance | |
|---|---|
| Trimester | Second |
| Month | 4 |
| Weeks to due date | 26 |
| Baby's size | About the size of a nectarine |
| Length | About 8.7 cm (3.4 in) |
| Weight | About 43 g (1.5 oz) |
| This week | Second trimester begins |
Sizes are typical averages. Before about 20 weeks, length is measured crown to rump; after that, head to heel.
Your baby at 14 weeks
Your baby is about the size of a nectarine and weighs about 43 g (1.5 oz). The neck is more defined, and the baby can make facial expressions such as squinting.
Your body at 14 weeks pregnant
Welcome to the second trimester. Many people find this stretch easier: more energy, less nausea. A small bump may start to show.
Things to do this week
- Ask about the whooping cough vaccine. The NHS offers it from 16 weeks and in the US it is given at 27 to 36 weeks.
- Start thinking about maternity clothes.
- Keep moving: regular activity helps sleep and mood.
When to call your doctor or midwife
Contact your care team straight away if:
- you have bleeding or fluid leaking from your vagina
- you have severe belly pain that doesn't go away
- you have a fever of 100.4°F (38°C) or higher
- you have a headache that won't go away or gets worse
- you have regular, painful tightenings
If something feels wrong, trust that feeling and call. In an emergency, call your local emergency number.
Track week 14 in Momi
Take this week's bump photo in Momi. Week 14 is a popular starting point for a photo series. Momi follows your pregnancy week by week with your baby's size and development, and keeps your diary, bump photos, appointments, kick counts and contractions in one place.
Download Momi free on the App Store or Google Play. Free with ads; optional Premium.
Keep reading
← 13 weeks pregnant · All weeks · 15 weeks pregnant →
Sources
- ACOG: Changes During Pregnancy (infographic)
- NHS: Your baby's movements
- NHS: Antenatal care and appointments
- CDC: Urgent Maternal Warning Signs
Medical disclaimer: Momi and this website provide general information, not medical advice. Always talk to your doctor or midwife; in an emergency call your local emergency number.
FAQ
How big is a baby at 14 weeks pregnant?
On average, a baby at 14 weeks is about the size of a nectarine: about 8.7 cm (3.4 in), about 43 g (1.5 oz). These are typical averages, and healthy babies vary.
How many months is 14 weeks pregnant?
14 weeks pregnant is in the fourth month of pregnancy and the second trimester. Months don't divide evenly into 40 weeks, so different sources may label the month slightly differently.
What should I do at 14 weeks pregnant?
Ask about the whooping cough vaccine. The NHS offers it from 16 weeks and in the US it is given at 27 to 36 weeks. Start thinking about maternity clothes.
Related guides
Track this in Momi
Momi is a free pregnancy tracker app for iPhone and Android that follows pregnancy week by week, estimates the due date, and keeps a pregnancy journal, weight log, kick counter and contraction timer in one place.
