During the first three weeks, you can’t be 100% sure that you are pregnant. Doctors consider them the end of your menstrual cycle. However, in the fourth week, you'll notice physical changes and feel symptoms as your pregnancy has indeed been confirmed.
At the beginning of week 4, your fetus might seem very small, but your child's chromosomes have already determined features like hair color, eye color, gender, and more.
In this video, learn about the stages of fetal development during week 4 of pregnancy with Dr. Cherifa Sharaf, consultant in obstetrics and gynecology.
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