All About the First Trimester

First trimester of Pregnancy

For most women, the first 12 or so weeks of pregnancy are the most consuming because everything is all so new, so exciting, even overwhelming. To satisfy the little voice inside your head that keeps asking questions, here’s a primer. Keep it handy.

Aversions (and Cravings)
Being repelled by certain tastes and smells is common. “Your digestion is slowing down, so some formerly appealing foods become intolerable,” explains certified nurse-midwife Lisa Kane Low, Ph.D., R.N., a faculty member at the University of Michigan School of Medicine. Ignoring an aversion may only make you feel sicker, so don’t feel you have to eat something just because you think it’s good for you.

Cravings are the flip side of aversions: Although the cause is unknown, they may simply be your body’s way of telling you to eat what you can stand. Unless they could be harmful (see “H”), go ahead and indulge them.

Breasts
“Pregnant women always think of their bellies as the focal point,” says Low, “but usually the first physical symptom they notice is a too-tight bra.” In fact, the symptoms of early pregnancy, such as acne, mood swings, cramps and especially swollen, tender breasts, closely resemble PMS.

Chorionic Villus Sampling (CVS) 
This diagnostic test for chromosomal disorders such as Down syndrome is usually performed between weeks 10 and 12. CVS can be done earlier than amniocentesis, but unlike amnio, it cannot detect neural-tube defects such as spina bifida.

In addition, says Donald R. Mattison, M.D., senior adviser to the directors of the National Institute of Child Health and Human Development and Center for Research for Mothers and Children, the miscarriage risk is slightly higher with CVS—around 1 percent vs. less than 1 percent for amnio.

Source: fit PREGNANCY and BABY

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