I am in my second trimester up from a 10DD and now currently a 12E. I ordered a M busty. It’s a good fit on the tightest to second tightest hook, so I have room to grow as my pregnancy progresses. I could easily increase cup size one or two sizes and still be comfortable in this bra. It’s much more supportive than the other similar bras I’ve tried in Berlei or on Amazon, but it is a light support bra. I recommend this bra and will be buying more.