Can I have sex while on my period ???

Janniel
I've always been really cautious and very sanitary when it comes on to my period. But for some reason my boyfriend says he's very horny but, I'm on my period. He says that it's ok and safe to have sex while my period is on and he wants some urgently, no condom and he'll take care of the mess. Idk, I'm a bit iffy about doing this.. Especially the mess and today's my first day.