1st trimester: Week 13

Health

Studies show that moderate caffeine intake is fine for expectant moms, but too much can dehydrate you and leach your body's calcium, which your baby needs to grow strong teeth and bones. But coffee isn't the only caffeine-laden beverage out there. The ingredient is also found in soda, tea, and cocoa, so watch how much you indulge in these drinks, too, or pick decaffeinated alternatives.

Health Watch:

Mom to Mom

Advice from moms in the know: "Tell everyone that your delivery date is two weeks later than predicted. That way, friends and colleagues won't start checking up on you every day as 'the date' approaches." -- Stacey Pinnock, Salt Lake City

Shopping

Feeling hot, hot, hot? Choose natural fibers -- like cotton or linen -- over synthetics, which trap body heat and make you uncomfortable. If you're not sure of the weather, dress in layers, so you can easily add or remove them.

Exercise

Your fitness regimen is getting a makeover now that you're expecting. Avoid anything that requires the Valsalva maneuver, which happens when you exhale with great force (during weight lifting, for example); it can raise your blood pressure to dangerous levels.

Relationships

Experts say you should tell your boss before anyone else at work that you're pregnant, but it's hard to keep good news from friends. The alternative? Divulge your secret to coworkers whom you trust and who have been in the same situation. They can share their experience with you and give pointers on how to approach your supervisor or negotiate maternity leave.

Family Planning: