Finding the Perfect Suit
"The best way to find that perfect suit is to try it on," says Atkin, who also advises that you check the company's return policy, whether you're shopping online or in a store. You don't want to end up with a suit you don't like and not be able to return it.
As far as price, Atkin says a well-made maternity fashion swimsuit is going to run in the mid $60s to $70s, while designer brands start in the high $80s to $100. The best deals are often on one-piece suits, which you can find for a reasonable $40.
Once you buy that perfect suit, make sure to take care of it: rinse the suit when you get out of the water, wash gently, preferably by hand with a mild detergent, and air dry. Be sure to follow the instructions for washing your suit so it'll last your entire pregnancy and any other pregnancies as well.