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Pregnancy week by week

19 weeks pregnant

Your baby is filling out.

In short

At 19 weeks your baby is about the size of a beef tomato, around 24.0 cm long and 272 g. Your baby is filling out.

  • Second trimester, week 19 of about 40.
  • Early pregnancy antenatal classes are meant to start before 20 weeks, so ask your maternity unit if they run them.
About the size ofBeef tomato
Length, head to heel24.0 cm
Typical weight272 g

Your baby keeps putting on weight and will slowly fill out over the rest of pregnancy. The buds of adult teeth are forming behind the milk teeth.

How big is my baby at 19 weeks?

At 19 weeks your baby is about the size of a beef tomato, around 24.0 cm long and 272 g. Before about 14 weeks babies are measured from crown to rump; after that the figure is head to heel. These are typical figures from fetal growth charts. Your own baby may be bigger or smaller, and your scans are what count.

What is my baby doing at 19 weeks?

What changes for me at 19 weeks pregnant?

What is a good tip for this week?

Sleep on your side with a pillow between your knees and another supporting your bump.

What can a partner do this week?

Take on the heavy lifting and shopping bags this week and beyond.

What should I know in Ireland at 19 weeks?

When to get help: There's no set number of kicks to count, but if you're ever worried about movements contact your maternity unit straight away, as home dopplers and apps aren't recommended. HSE: when to get help.

Want these updates on your phone? The Lullagram app has a free pregnancy section with this week-by-week guide, Irish dates worked out from your due date, a contraction timer and more. When your baby arrives, the baby tracker is ready in the same app.

Sources and guidance

This page is written to be consistent with the official guidance below. It is general information for parents in Ireland, not medical advice. Links checked 23 September 2026.