What's a female problem that would require multiple doctor's visits?

Ok, so it's random. My husband and I are trying to get pregnant but I'm having infertility issues that require me to visit the doctor about 5 or 6 times a month, hopefully just for one more month but longer if I don't get pregnant this time around of course. I just got a promotion in my job that changes me from flexible hours to a more 9 to 5. I haven't told anyone in my company that I'm trying to get pregnant A) because it's none of their business and B)I wanted to get this promotion and keep it. I don't think they'll try to force me out, but they're not super kid friendly and anyway...long story short I'd rather not tell people. So I'm going to try to get more Dr. appts for off hours but I'll need some during the workday. I need ideas on what fairly minor problem I would have that would explain so many visits. I'm thinking keep it in the 'women's troubles' arena because people are less likely to ask, and if they require a doctor's note, I can give them one. Any suggestions?