Yeah, unless you want to encourage the Fun of having your military lug babies around all the time, make damn sure you're only drafting males. Me, I never even notice the difference between male and female, and forget to sex, as it were, the dwarves before I draft them. But it really might be worth it to have your army be all male, since the military leads to socializing and soon all your soldiers WILL marry each other, at which point the female ones will start cranking out babies nonstop.
Then just remove the females from the military after that and give them a standard job. Consider her a reserve. Or throw them into a seperate squad that doesn't use the Danger Room.
I can't fathom actually checking gender on my Dwarves before assigning them to things. Way too lazy for that.