7 Weeks- development

Your Baby This Coming Week

Your baby's crown to rump measurement is about 0.56 to 0.8 inches (14 to 20mm).

Your baby's face has a recognizable shape with eyelids and the tip of a nose with formed nostrils, though his head is still very large compared to the rest of his body.

All major organs are now formed and in place, though they still need to mature.

A tongue has already formed. The ears are forming both internally and externally.

The arms and legs extend forward and shoulders, elbows, hips and knees are detectable. Knees and elbows have begun to form on the limbs. Tiny fingers and toes are starting to appear at the tips of your baby's developing limbs and the arms may be slightly flexed at the elbows and wrists. All major organs are in place.

Your baby is moving around a lot, moving his legs and flexing his spine, but you are unable to feel it at this point.

Your baby's genitals have begun development, though they are still difficult to identify.

Your Body This Coming Week

You may feel some cramping as your uterus expands. You are still not showing, but you may have noticed that some of your clothes are beginning to feel tight.

Due to the hormones associated with pregnancy, the follicles in the ovaries stop maturing. Your uterus has begun to swell and its lining has thickened considerably.

You may have cravings for certain foods and find others completely unappealing. The smell of cigarette smoke and the taste of alcohol may make you nauseous.

Some women experience sciatic nerve pain which is an occasional severe pain in the buttocks, back or side of the legs. If you experience sciatic nerve pain, lying on your opposite side may relieve the pressure on the nerve.