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You and your baby at 7 weeks pregnant - Your pregnancy and baby guide

Your baby at 7 weeks

By 7 weeks, the embryo has grown to about 10mm long from head to bottom. This measurement is called the crown-rump length.

The brain is growing rapidly and this results in the head growing faster than the rest of the body. The embryo has a large forehead, and the eyes and ears continue to develop.

The inner ear starts to develop, but the outer ear on the side of the head wil not appear for a couple more weeks.

The limb buds start to form cartilage, which will develop into the bones of the legs and arms. The arm buds get longer and the ends flatten out – these will become the hands.

Nerve cells continue to multiply and develop as the brain and spinal cord (the nervous system) starts to take shape.

You at 7 weeks

Your womb has grown to the size of a lemon by the time you're around 7 or 8 weeks pregnant.

You're probably feeling tired. Your breasts might feel sore and enlarged, and you may need to pee more often than usual.

Some pregnant women start to feel sick or tired, or have other minor pregnancy problems for a few weeks around this time.

For most women, feelings of nausea and vomiting (morning sickness) start to improve by the time they're around 14 weeks pregnant.

Some infections can harm a pregnancy. It's important to let your doctor or midwife know if you think you may have an infection so they can give you the right care as early as possible.

Find out the symptoms of infections that may cause problems in pregnancy

You may have bleeding or sore gums when you're pregnant. Good mouth hygiene and regular dental care (free to pregnant women) to keep your teeth and gums as healthy as possible is the best way to avoid or care for gum problems.

Things to think about

The Start4Life site has more about you and your baby at 7 weeks of pregnancy.

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See 3 to 42 weeks of pregnancy

Media last reviewed: 20 March 2017
Media review due: 20 March 2020

Page last reviewed: 17 July 2018
Next review due: 17 July 2021