Sizes are averages; from week 20 length is measured head to heel. Not sure which week you’re in? Calculate it.
Your baby at 16 weeks
The eyes can make small side-to-side movements, and the facial muscles allow expressions. Back muscles are stronger, so the baby holds the head more upright. Toenails are forming.
Your body at 16 weeks
Some women – especially those who have been pregnant before – feel the first flutters of movement between now and 20 weeks. Skin changes such as a dark line down the belly (linea nigra) or darker patches on the face (melasma) may appear.
Common symptoms this week
- First flutters (for some)
- Skin pigmentation
- Glowing skin
Tips & to-do list
- Protect your skin from strong sun to limit melasma.
- Start getting used to sleeping on your side.
- Keep your antenatal appointments – aim for at least 4, ideally 8 or more, contacts.
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 16 at a glance
| At 16 weeks | |
|---|---|
| Trimester | Second trimester |
| Pregnancy month | Month 4 of 9 |
| Weeks to due date | 24 weeks |
| Days pregnant | 112–118 days |
| Progress | 40% 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 16 weeks pregnant
How many months is 16 weeks pregnant?
16 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 16 weeks?
At 16 weeks your baby is about the size of a guava (amrood) – roughly ~11.6 cm long and weighing about ~100 g.
Is it normal to have no symptoms at 16 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.