Your nausea may actually get worse this week as your hormone levels rise. Remember it's called morning sickness, but it can strike at any point of the day. Your breasts may tingle, feel heavy, the areola (dark nipple portion) may become darker.
Avoid changing cat litter for there is a risk of toxoplasmosis. Let someone else do this duty for while. Toxoplasmosis can cause problems with pregnancy or your newborn, but most women who have cats have already had toxoplasmosis, and just believed it to be the flu. So don't get rid of the cat, just let someone else change the litter.
Another busy week for your baby. By the end of the week your baby will be 4-6 mm Crown to Rump (CR). The larynx starts to form as does the inner ear. The lining of the placenta begins developing but the placenta will take over production of the hormones in week 12.
The heart is bulging from the body and circulation is well established. Limb buds appear this week. And the primordia of the liver, pancreas, lungs, and stomach are evident. Transvaginal ultrasound can pick up 86% of the fetal poles with heart motion, and 100% of the yolk sacs at this point.
It's not easy watching the mom-to-be in your life feel ill. Be sure to ask her what you can do to help. Sometimes a cool wash cloth for her face and neck is helpful, sometimes bringing her a snack before she gets out of bed can help and sometimes she just wants to be alone.
Reference: http://pregnancy.about.com/
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