You’re 20 weeks pregnant

You’re now in your 20th week of pregnancy! Here is what is happening…

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  • How big is your baby?

    Your baby is around 16.5cm long (about the size of a large mango) and weighs approximately 255g.

    Now find out how your baby is growing…

  • How is your baby growing?

    She has now reached the halfway point in her development. This is a crucial point in your pregnancy for your baby’s development of her five key senses: taste, smell, hearing, sight and touch.

    This week her development will be focused on her lungs, digestive and immune systems. Her brain is also maturing, with complex connections forming that will enable her later to think and remember.

    Your baby’s skin will be getting thicker and by week 20, four layers of skin have developed. One of these contains the skin layer that is responsible for surface patterns on the fingertips, palms and soles of the feet.

    Her little heartbeat can now be heard with a stethoscope.

    If your baby is a girl, it's incredible to think that she will already have around six million eggs in her ovaries, but by the time she is born, there will only be about a million.

    Now find out what’s happening to your body this week…

  • What’s happening to your body?

    You’re beginning to look pregnant with a noticeable bump and disappearing waistline. You may also start to notice some darker areas on the skin on your face. Don’t panic, these usually fade after the baby is born, and some women don’t get them at all.

    Make sure you carry around a hanky because nose bleeds can suddenly crop up at this stage. The blood vessels in your nose expand during pregnancy and your increased blood supply puts more pressure on those delicate vessels, causing them to rupture more easily. It’s very common and rarely anything to worry about.

    Learn more about what symptoms to expect this week and check out our week by week pregnancy guide...

    Have a look at what happened in week 19 of your pregnancy, and what you’ve got coming up in week 21 of your pregnancy.

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