August 6, 2002 at 8:21 PM EST - Updated July 11 at 9:01 AM
A new study suggests pregnancy might dull a woman's memory while she's expecting. Researchers think memory temporarily weakens because of changes in blood chemistry.
The scientists gave memory tests to 50 pregnant women and another 50 who were the same age but not pregnant. Pregnant women scored lower than those who weren't pregnant. But the pregnant women did score better in the last three months before giving birth.