I am wearing a non-maternity tankini that I had planned to replace this summer until I found out I was pregnant. It's good because it covers my belly (well, most of it, some is now poking out.) I think I'll be able to wear it for a while since the top and bottom are separate and the belly can just come out in between. If I were you, I'd go somewhere cheap like TJ Maxx or Marshalls or something comparable in your area and get something like that that is cheap but feels ok on you. Enjoy your beach time!