By all the statement that are made here almost everyone on the this plant could qualify to be a nerd by simply liking one thing that is deemed "nerdy" Heck my mom could now be nerd for watching Star Trek Next Generation,or I could even be a gamer for playing Just Dance 4.
How is that a problem? "Nerd" isn't a title you earn through hard work and dedication. You don't go through some ritual of hazing or bullying before you can call yourself a nerd. If your interests are considered nerdy, if you're super passionate about something, devour all the content of it you can get your hands on, then guess what? You're a nerd. Congratulations. Frankly, I'd be proud to have a mom who was into Star Trek.
People who define themselves by one title usually aren't very fun to be around. If you're so serious about calling yourself a nerd, maybe that's why you can't find any nerdy female friends who fit your ridiculously high standards. Being into books, comics, or TV shows doesn't make you less intelligent either.