True, you're not pregnant yet, but there's a reason why your gestation period begins at the first day of your last period: It's very difficult to say exactly when conception occurs. So it's best to prepare your body for baby before egg and sperm have a chance to meet.
Consider the following:
- It's never too early to give up alcohol. Other drugs (both illegal and legal), cigarettes and certain legitimate prescriptions are also pregnancy no-no's, so talk to your doctor about anything you take.
- Health and nutrition count from day (or week) one. That means eating well, exercising and popping a prenatal vitamin with lots of folic acid in it as soon as you know you'll be trying to conceive.
- There's nothing wrong with a little vanity. Sure, there's not much solid evidence that stretch-mark-prevention creams work, but if there's any chance they will work it'll be because you start slathering early. Worst case scenario, you still get stretch marks but you skip the itching and dry skin that can come with pregnancy -- and begin a great pampering ritual (that your partner can be a part of, if you like).
Finally, what you don't need to worry about from day one ...