Your first pregnancy is an experience unlike any other. You've never done this before so you might not know exactly what to expect. "I remember early in my second pregnancy, feeling so reassured, having done it all before," says Rallie McAllister, family physician in Lexington, Ky., and co-author of "The Mommy MD Guide to Pregnancy and Birth." But even experienced moms can be surprised "since even perfectly normal pregnancies vary so much in symptoms," McAllister acknowledges. While it's true each pregnancy is unique, certain similarities often occur.
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