What to wear??

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So we’re starting to pack our hospital bags, and since we’re going to a birthing center, they mentioned we can use the tub/shower to help with the pain. Idk if I should go and buy a swimsuit to wear or if I should get a sports bra. I absolutely hate the feel of wet clothes/hair on me and idk what I’ll do if we decide to use the shower handle for my back or whatever. Should I bring multiple swimsuits??