I'm kind of in your position now. Although I'm not in an NP program yet, I plan on applying next year. I feel as though Women's Health is the ONLY area that I want to work in, however, I know that it might be extremely difficult gaining employment after graduation. So right now my dilemma is: go to school for FNP, absolutely HATE the material I learn about and the clinical portion, BUT be more flexible after graduation, or, go for WHNP, love the material/clinical, but deal with the difficulties of not finding a job right away. Pretty hard decision to make.
Right now I've just decided to volunteer in a Women's Health clinic to get my feet wet (no previous WH experience), and see where that leads me. Maybe I'll be able to network, meet some great people, and it might lessen the burden of finding a job after graduation. Nothing set in stone, but it sounds like a decent plan. I guess we'll see how well that goes in due time.