ECUPPERWomens Plus Size Swimsuit One Piece Skirted Swimwear Tummy Control Swimming Costume with Shorts

I am larger on my bottom and unsure on sizes. according to the sizes on the photos i am an xl but on the uk sizes on amazon a m. which do i go for?

I’m a size 12-14 but have a bust size of 34e what size would you recommend?

Are you supposed to take the bra pads out when you go swimming please or can they be left in?

I want a large size , can’t take the X-Large off my order