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Trimester 2 · week by week

Pregnancy week 22

At about 27.8cm in week 22, the baby is practising breathing and swallowing.

Week 22

What is happening in week 22

Doctors count pregnancy weeks from the first day of your last period, so week 22 sits in the second trimester (week 14 to week 27). That is about 18 weeks to go until week 40, and about 5.1 months by a rough conversion. At about 27.8cm in week 22, the baby is practising breathing and swallowing.

Your baby

The NHS guide gives about 27.8cm, roughly a sweet potato. The lungs are developing and the baby practises breathing. It swallows small amounts of amniotic fluid, which becomes meconium (the first poo) after birth, and its taste buds are developing.

Your body

Stretch marks, piles and round ligament pains are common. You may also have headaches, backache, nosebleeds and swollen hands and feet.

This week’s to-do

  • Remember stretch marks are harmless and usually fade after birth, as the NHS notes.
  • Eat fibre and drink water to ease piles and constipation.
  • Ask about antenatal classes.

When to call

Call your doctor or hospital immediately if you have severe pain or vaginal bleeding.

Chaitanya Hospital in Kadapa, near RTC Bus Stand, Simhapuri Colony, provides delivery and emergency care 24/7. Our antenatal check-ups team can answer questions about your own pregnancy.

Use the week-by-week guide to jump to your week, or the due date calculator to work out your dates. Timings for scans and tests come from NHS guidance in the UK and can differ from your doctor’s schedule, so always follow your own doctor’s advice. This page is educational and not a substitute for a doctor.

Sources

Text on this page is paraphrased from the sources above. Sizes are averages and vary between babies.

Frequently asked questions

How many months is week 22 of pregnancy?

Week 22 is about 5.1 months. This is only an estimate, because months are not a fixed number of weeks and doctors count in weeks from the first day of your last period. Ask your doctor how far along you are.

How is my baby growing in week 22?

At about 27.8cm in week 22, the baby is practising breathing and swallowing. Sizes are averages, and every baby is different.

When should I call my doctor in week 22?

Call your doctor or hospital immediately if you have severe pain or vaginal bleeding. You can also reach Chaitanya Hospital in Kadapa for delivery and emergency care 24/7.

Your care journey starts with one call

Book a visit, ask a question on WhatsApp, or call us any time. Delivery and emergency care are open 24/7.