hormones can do magical and weird things its easy to see how that could cause you to feel more girly than normal, psycologicly speaking your period is perhaps one of the most clearly feminine things that happens to you, and dealing with it could easily trigger thoughts of if this happens to me can i really be trans. I know there where times especially before HRT that I questioned myself, I had someone tell me once that I just needed to get laid and I would like being male after that, I even considered it a few times but ultimatly I realize its just listening to fear and minor doubts.
So I say if you usually feel like a man then your a man, even if hormone levels make you sometimes feel a bit feminine, on the other side if you feel like a woman your a woman even if for a while after climax you feel relaxed and are not as dysphoric. Plus remember after you start Testosterone those monthly events will stop after a few months so that should help resolve it.
Serena
