Period sex

I thought I would never have sex while on my period but my cramps are so bad on the first day all I can do is cry because pain killers and rice bags stopped helping. I got desperate and found out that sex can help with cramps, my boyfriend was more than willing to test that out and it actually helped a lot. I've never been more thankful for my boy who isn't afraid of getting a little messy in order to keep me happy, what are your thoughts on period sex? Does it help with your period symptoms as much as they help me?