Period /sex Question

So iam 20 and I just got my first boyfriend and he’s amazing and he’s very patient with me regarding anything sexual because I’m pretty clueless about sex etc. I had a question about periods and sex. When iam on period I don’t him going down on me because that would be weird for me but what other things can we do so that I get satisfied as well as him? Also how does one put on a tampon?