Is period sex worth it?

So my fiancee (F23) just started her period today, and we've been wanting to have sex since Saturday ish. My big question is, is it worth it? I do want to attempt it because it could be interesting, but I'm not entirely sure. I've never really encountered period blood cause she's self conscious about it which is understandable. I also wanna know what to prep, what positions are good for not getting to messy and how to deal with kinda being uncomfortable with it. Thanks