Every 4th week includes a picture of what baby looks like

Pregnancy week 9

The embryo is now called a fetus. 

This is the critical stage during which your baby is forming her organ systems.

The fetus is constantly moving and shifting, although you won't be able to feel it for several more weeks. The arms have grown and the hands are now flexed at the wrist and meet over the heart area. The legs are lengthening and the feet may be long enough to meet in front of the body. It's still almost impossible to tell a boy from a girl.

Though you haven't gained much weight yet, parts of you are growing — like your breasts. Less obvious is the increase in blood volume; by the end of pregnancy, you'll have 45 to 50 percent more blood running through your veins to meet the demands of your baby. Take your prenatal vitamins to make sure you're getting the extra iron you need. Iron is very essential because you need it for you and the baby to make more blood. You also need to make sure your eating an extra 300 calories a day.

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