Pregnancy week 10 - baby's development and your body

Week 10 is the eighth week after fertilization.

The embryo’s head now has a round shape, and the face is beginning to develop recognizable human features. All organs, except the external genitalia, have now formed and will continue to grow and begin functioning.

Size:

The embryo is about 3–4 cm or 1.18–1.57 inches in size, from head to rump.

Weight:

Approximately 4 grams or 0.141 ounces.

Embryo development:

The embryo's head has become rounder, and the eyes are no longer positioned on the sides but have shifted forward. The ears have also formed and are almost in their final position. The head is still a bit larger than the rest of the body.

The embryo has small arms with elbows, and the hands now have fingers without webbing between them. The embryo also has legs, feet, and toes.

The heart is beating and pumping blood through a small circulatory system, and the embryo can make simple movements. The nervous system is developing rapidly this week, and all internal organs have formed.

Your body:

Pregnancy is usually not visible this early, but the uterus is growing, and you may feel bloated. Some people also experience it as mild period-like cramps as the uterus expands and takes up more space.

Some may feel the need to urinate more frequently already, as increased kidney blood flow during pregnancy leads to a greater amount of urine. It is also common to feel tired and want to sleep a lot.

It's also common to start experiencing heightened sensitivity to smells and tastes, and more noticeable nausea than in the earlier weeks. If you haven't started feeling nauseous by now, you likely won't.