Maternity bathing suit πŸ¬πŸŠπŸ»πŸ–

Lo
When to buy? Do you have to wait til you are big or do they have "room to grow"? I want a one piece, I've been a one piece kind of gal for a few years now. I'm 20w and can just fit into my old suit with some shorts to cover the hiking crotch, but I want lots of pool time this summer and don't want to loose time shopping the good suits now!