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Fetal Development: Week 4

Week 4 of your Pregnancy

The cluster of cells now develops into a distinctive shape which is tinier than a grain of rice and is now called an embryo. Your tiny embryo is attached to a tiny yolk sac (which provides nourishment) and surrounded by fluid inside the amniotic sac.

Your baby’s body now has three distinct layers (ectoderm, mesoderm and endoderm), from which all of his/her organs will develop.

Gestational Age Week 4The placenta also starts developing.

What to Expect

You will have missed a period by the end of week 4 which may be the first sign of pregnancy.

Breast tenderness may be another physical sign that you are experiencing.

Many of the early pregnancy symptoms are similar to those you may experience before your period.

A home pregnancy test should now confirm what you have been hoping for – that you are pregnant.

Tip for Week 4

Once you have confirmed your pregnancy with a home pregnancy test, it is time to schedule an appointment with your doctor.

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