Baby Bolin: 4 Weeks

You may not feel pregnant yet, but your body is going through miraculous changes. In your uterus, the ball of cells that will become your baby is dividing furiously. Though it's only about the size of a poppy seed, it's officially an embryo now. Are you feeling queasy yet? If not, brace yourself: Despite the name, morning sickness can strike any time, day or night, and nearly eight in ten pregnant women suffer from it.

This week marks the beginning of the embryonic period. From now until ten weeks, all of your baby's organs will begin to develop and function. As a result, this is the time when he or she will be the most vulnerable to anything that might interfere with his or her development.

See what your embryo looks like now and find out how to confirm your pregnancy, when to see a doctor or midwife, and more.

How Mom's life is changing: This week, you should be able to find out if you're pregnant!

Boy or Girl?

Gender Predictor is based on the Chinese calendar method. Note that this method is not endorsed by any medical expert but some locals will swear by its accuracy.

Other Old Wives Tales:

It's a boy if:

• You didn't experience morning sickness in early pregnancy
• Your baby's heart rate is less than 140 beats per minute
• You are carrying the extra weight out front
• Your belly looks like a basketball
• You are carrying low
• You are craving salty or sour foods
• You are craving protein -- meats and cheese
• Your feet are colder than they were before pregnancy
• The hair on your legs has grown faster during pregnancy
• Your hands are very dry
• Your pillow faces north when you sleep
• Dad-to-be is gaining weight, right along with you
• Pregnancy has you looking better than ever
• Your nose is spreading
• You hang your wedding ring over your belly and it moves in circles
• You are having headaches
• You add your age at the time of conception and the number for the month you conceived and the sum is an even number

It's a girl if:

• You had morning sickness early in pregnancy
• Your baby's heart rate is at least 140 beats per minute
• You are carrying the weight in your hips and rear
• Your hair develops red highlights
• You are carrying high
• Your belly looks like a watermelon
• You are craving sweets
• You are craving fruit
• You crave orange juice
• You don't look quite as good as normal during pregnancy
• You are moodier than usual during pregnancy
• Your face breaks out more than usual
• You refuse to eat the heel of a loaf of bread
• Your pillow faces south when you sleep
• You hang your wedding ring over your belly and it moves from side to side
• You add your age at the time of conception and the number for the month you conceived and the sum is an odd number