13 Weeks Pregnant – Your Body and Your Baby

13 Weeks Pregnant | Symptoms and What To Expect

Welcome to the last week of the first trimester! When you’re 13 weeks pregnant, you are entering the more enjoyable second trimester.

Your risk of miscarriage has now reduced significantly.

Now you’re 13 weeks pregnant, your moods have likely settled a little more, and you should have much more energy.

13 Weeks Pregnant – Your Body

You may notice your breasts are not as tender. Morning sickness may disappear, and you will need fewer trips to the toilet.

During this trimester, your bump will become more obvious as your uterus begins to rise out of the pelvic area.

You may feel an ache or pulling sensation in your tummy as the ligaments that support your uterus stretch.

13 Weeks Pregnant – Your Baby

When you’re 13 weeks pregnant, your baby has fully functioning kidneys and starts to pass urine regularly. It is also able to suck and swallow and its neck is getting longer.

The spleen has started to develop and will begin to create red blood cells and your baby is now producing bone marrow.

Movements increase but it is unlikely that you will be able to feel these movements, especially in a first time pregnancy.

Baby even has its unique set of fingerprints!

The first trimester is a crucial time for development – the foundations have been laid and now your baby just needs to mature and grow.

Curious if you’re having a boy or girl?

If you want to find out, the most accurate time is at the 18-20 week ultrasound.

In the meantime, you can check out some old wives tales in our just-for-fun article, boy or girl?

When you’re 13 weeks pregnant, your baby measures approximately 7-8cms long and weighs around 23 grams. Your baby is about the size of a peach.

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Last Updated: August 31, 2018


Kelly Winder is the creator of BellyBelly.com.au, a writer, doula (trained in 2005), and a mother of three awesome children. She's passionate about informing and educating fellow thinking parents and parents-to-be, especially about all the things she wishes she knew before she had her firstborn. Kelly is also passionate about travel, tea, travel, and animal rights and welfare. And travel.

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