Over the years, Dr. Elisabeth Aron has soothed the worries of many soon-to-be moms who have come to her with questions such as:

- Can I exercise during my first trimester?
- Is canned tuna safe to eat throughout my pregnancy?
- Do self-tanners contain chemicals I should be worried about?
- I have to fly for work during my second trimester. Is this safe?
- Is cookie-dough ice cream safe to eat?
- Can I wear an underwire bra during my pregnancy?
- I'm six months pregnant. Is it alright for me to have a glycolic peel facial?
- Are peanuts safe to eat or will my baby develop a peanut allergy if I eat too many?
- There is a lot of chlorine in my health club's pool. Is that a good or bad thing?

Pregnancy Do's and Don'ts includes hundreds of entries on possible concerns--from apple cider to zinc and everything in between. In each entry, Dr. Aron identifies the item, the possible cause for concern, and explains the bottom line--whether it is something a woman should avoid completely, something to take a better-safe-than-sorry approach toward, or something that is perfectly fine.