"Am I Pregnant?" Signs That This Month Might Be the One

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Cynthia Ramnarace on Oct 13, 2010 at 3:51PM

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You're Suddenly Exhausted


a Cynthia Ramnarace on Oct 13, 2010 at 4:16PM

“Fatigue is a universal pregnancy symptom,” says Dr. Greenfield. Progesterone, again, is to blame. The more progesterone you produce, the sleepier you’ll feel. Combine with that lower blood sugar levels, lower blood pressure and amped-up blood production, and it’s no wonder you suddenly crave an afternoon nap.

Next Up: 15 Things You've Gotta Do Before You Get Pregnant
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