Do I need a maternity bathing suit?

SposaBellarina

Totally excited that we just booked our babymoon!  Now I am wondering if I need a maternity bikini/tankini/something.  The ocean will be too cold for full-on submersion, but I plan to wade and splash with my husband and dogs.   We like to run on the beach, too, so normally, I wear a bikini top and bottoms and then running shorts/skort over it for coverage (unless I am actually just swimming).

I am just starting my 6th month and wearing mostly stretchy non-maternity in my regular size.  (Bought 2 pairs of maternity work pants and 2 pairs of maternity jeans, but all the tops & dresses I've tried have been too big.)  Out trip is in 5 weeks, so I will be just entering 3rd tri.  I am due July 2 and not planning another vacation once LO arrives.  Do I need to buy a maternity bathing suit?