Everything You Need to Know About Pregnancy, Week By Week
Things happen FAST.
The weirdest thing about your first week of pregnancy is that you're not actually pregnant yet. Your doctor considers Week 1 the week you started your last period — conception doesn't usually happen until two to three weeks after that, according to the Cleveland Clinic.
You're (still) not officially pregnant during Week 2, but during Week 3 it'son.If fertilization occurs, the embryo — at this point called a blastocyst — attaches itself to the wall of your uterus.
Your baby is now the size of a pomegranate seed or sweet pea. During your sixth week of pregnancy, his or her heart is also humming along at 150 beats per minute and facial features are beginning to take shape.
At this stage, your baby's brain is growing quickly and his or her facial features are starting to become even more recognizable. Even the arms and legs are growing, allowing the little one to move around a little bit.
At Week 10, your baby's hip and shoulder joints are able to rotate, giving much more flexibility and freedom to kick around. Fingers and toes will also start to grow.
Now the size of an eggplant, your baby has started opening and closing his or her eyes. Up until this point, the eyelids have been fused shut.
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