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7 Weeks Pregnant: What's Going On

Pregnancy week 7

Your little one's brain is splitting into three distinct structures: forebrain, midbrain, and hindbrain. Genius in the making! Arm and leg buds are sprouting, too. Get the scoop on pregnancy week 7.

Your Baby at 7 Weeks Pregnant

Brain child. Although brain development will continue long after birth, the basic sections are laid down now. As the week progresses, the organ will divide into three parts: forebrain, midbrain, and hindbrain. The forebrain will be responsible for things like reasoning, problem solving, and forming and retaining memories. The midbrain will relay electrical signals to their final destinations in the brain. The hindbrain will take care of breathing, heart rate, and muscle movement. Limbs are also growing fast: Arm and leg buds have sprouted.

Measuring up. Your little one is 0.15 to 0.3 inch (4 to 8 millimeters) long this week, a little larger than the width of your pinky nail.


Your Pregnancy at 7 Weeks 


The pee parade. Do you find yourself constantly running to the bathroom? Raging hormones and increased blood volume cause your body to produce more fluid, which then has to be eliminated. Instead of cutting back on your water intake, make an effort to drink more than you did before you were pregnant.


Healthy habits. Your health care provider may caution you about the risks of contracting toxoplasmosis, an infection that's passed through raw or undercooked meat and cat feces. The infection is harmful to your fetus but not to you (unless you have a weakened immune system). You may already have had toxoplasmosis without knowing it — if you have, you are immune. To avoid coming in contact with the germ, order your burgers and steaks well done, wash your hands thoroughly after preparing meat, and take yourself off kitty litter duty for the rest of your pregnancy.
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