I think im gay but i fancy women

I think im gay. I know i fancy men and i know i ant to be with men, but every day i notice sexy women and think that i fancy them but if i ever tried to have sex with a women i wont be able to do to the deed. iv had girfriends that i fancy in the past although i cant have sex with them, but i know that im gay.

whats going on with me :|?