I have a kind of weird question (plz don't be harsh, to each his own)

Actually I have a few questions the first is how many of you have sex during your period? My second question is how likely is it that you can get pregnant on your period? My last and final question is how does your husband (or boyfriend) feel about sex on your period? Personally my boyfriend isn't bothered by the blood and we are really good about not making a mess. (I know some of you maybe grossed out but I don't do it all the time just every once in a while when my cramps are bad bcuz it really helps once I orgasm.