weird question

So me and my boyfriend about 2 weeks ago had sex and it was unprotected and protected and what I mean by that is that we started off with no condom and he finished in one. My period seems to be late according to the calendar and my bf is saying this ridiculous stuff that it's because of a full moon. 😂He read an article that talked about how menstrual cycles are somehow tired to lunar cycles. Do you guys believe in that stuff? 🤔