Small painful bumps

Do any of you ladies get these tiny red pimple like bumps? I get several at a time on my stomach,butt and thighs ( not always in every area at the same time) and they are painful and super annoying. I notice them around ovulation and AF. I haven't changed my soap, detergent or anything. I'm guessing it's just a hormonal thing but I'm not for sure. I'm curious if anyone has had these break outs. Thanks in advance!