Sizes are averages; from week 20 length is measured head to heel. Not sure which week you’re in? Calculate it.
Your baby at 15 weeks
Bones are hardening and would now show on an X-ray. The baby may sense light through the fused eyelids. The legs are growing longer than the arms, and the scalp hair pattern is forming.
Your body at 15 weeks
Bleeding or swollen gums (pregnancy gingivitis) are common. You may feel sharp pains on the sides of your bump when you move quickly – round ligament pain.
Common symptoms this week
- Bleeding gums
- Round ligament pain
- Nasal congestion
Tips & to-do list
- If you didn’t have first-trimester screening, ask about the quadruple marker test (15–20 weeks).
- Use a soft toothbrush and floss gently.
- Get up slowly and support your bump when turning in bed.
Check-ups and tests around this week
- Start iron-folic acid and calcium supplements; single dose of albendazole after the first trimester
- Quadruple marker test if first-trimester screening was missed (15–20 weeks)
Week 15 at a glance
| At 15 weeks | |
|---|---|
| Trimester | Second trimester |
| Pregnancy month | Month 4 of 9 |
| Weeks to due date | 25 weeks |
| Days pregnant | 105–111 days |
| Progress | 38% of 40 weeks |
When to call your doctor
Contact your doctor or go to hospital straight away if you notice:
- Any vaginal bleeding or fluid leak
- Regular tightenings or period-like cramps before 37 weeks
- Severe headache, blurred vision or sudden swelling of face and hands
- Fever, or pain while urinating
Questions about 15 weeks pregnant
How many months is 15 weeks pregnant?
15 weeks pregnant falls in month 4 of pregnancy, in the second trimester. For medical purposes, weeks and days are more precise than months.
How big is my baby at 15 weeks?
At 15 weeks your baby is about the size of an apple (seb) – roughly ~10.1 cm long and weighing about ~70 g.
Is it normal to have no symptoms at 15 weeks?
Yes. Every pregnancy is different, and symptoms come and go. Feeling well is not a sign that something is wrong. If you have concerns, or notice any warning signs listed on this page, contact your doctor.
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Medical disclaimer: The results and information on this page are estimates for general education only. They are not a diagnosis and do not replace advice from your gynaecologist, obstetrician or midwife. If you have pain, bleeding, reduced baby movements or feel unwell, contact your doctor or call 108 immediately. Read the full disclaimer.