babe wants period sex but I'm a little scared!?

I'm a little uneasy about period sex because well. In my mind I feel gross because I'm all bloody and shit and I just don't feel clean and I don't even know how period sex works really. But my babe really wants sex and if I tell him no obviously he's gonna be like okay that's fine baby but I LOVE having sex with him. It's always amazing and not even that he's so good at making it not just be about Sex but be loving to me and sweet and ugh I love him. But is there anyway I can feel more comfortable with period sex? Something I'm missing perhaps?