Sizes are averages; from week 20 length is measured head to heel. Not sure which week you’re in? Calculate it.
Your baby at 21 weeks
Movements are becoming more coordinated. The taste buds work, so your baby can taste flavours from your food in the amniotic fluid. The bone marrow has joined the liver and spleen in making blood cells.
Your body at 21 weeks
Stretch marks may appear on the belly, breasts or thighs. Some women develop swollen ankles or varicose veins.
Common symptoms this week
- Stretch marks
- Swollen ankles
- Varicose veins
Tips & to-do list
- Put your feet up when you can and avoid standing for long periods.
- Get to know your baby’s pattern of movements.
- Eat a variety of foods – your baby is sampling them too!
Check-ups and tests around this week
- Anomaly / Level-II / TIFFA scan (18–22 weeks)
Week 21 at a glance
| At 21 weeks | |
|---|---|
| Trimester | Second trimester |
| Pregnancy month | Month 5 of 9 |
| Weeks to due date | 19 weeks |
| Days pregnant | 147–153 days |
| Progress | 52% 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 21 weeks pregnant
How many months is 21 weeks pregnant?
21 weeks pregnant falls in month 5 of pregnancy, in the second trimester. For medical purposes, weeks and days are more precise than months.
How big is my baby at 21 weeks?
At 21 weeks your baby is about the size of a carrot (gajar) – roughly ~26.7 cm long and weighing about ~360 g.
Is it normal to have no symptoms at 21 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.
Jump to any week
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.