I am a guy that is cool with 30 day view of sex. My view is if I can help give my mate some pleasure to release the discomfort "game on".
For guys that pester for sex and presuming penetration is not painful, I highly recommend as a woman you should make them orally take care of you during this time before they can penetrate.
If they are a "man's man" and need it all the time, a little bit of blood should not be a problem "and" given there should be assumed trust diseases should not be an issue.
As a guy, one should not only love a woman part of the month, but "all" of the month.
On the plus side, blood can be a natural lube, but consent is queen and empathy is king. No means no, and yes means lets talk and maybe get it on ....