Should A Woman Have Sex During Her Period ?

My boyfriend and I have been together for seven months now. We have sex almost every other day except for when I m on my period. It usually lasts about five days. My boyfriend has a high sex drive and gets frustrated when I tell him that we can t do it while I m on my period. He says that he doesn t have a problem with me being on my period because he can wear a condom and put towels underneath me. But I have a problem with it because I become self-conscious about myself. I don t feel sexy while I m on my period and I worry about the blood getting everywhere and the smell, even though I clean myself often. I tell him about how I feel and he says that I shouldn t worry and it s natural, but I still don t want to do it. he gets disappointed and I get mad because he acts like he can t go a whole week without sex. What should I do?