Help With A Bathing Suit?

I'm starting to get bigger in the chest, but I'm still small, and whenever I wear shirts without wearing a Cami with a built-in-bra, or bralettes, you can see two fairly large bumps VERY well. Summer is coming up, and Tamarack is open, and I want to be able to swim! What should I do? What kind of swimsuit do I get so you can't see them? Is there a certain patter I should get?