I've been on ortho try-cyclen(LO) going on the 2nd mth. Before that I was on Yaz for 2 mths. I have a bleeding a very painful sore on my vagina. I am 18 and am not sexually active. My doctors nurse said birth control pills throw your body off for the first 3 mths and not to worry, but I still am.
Bleeding can be a common side effect of initiating the pill or changing pills. See how things go over the next month or two. You definitely should be seen about the sore on your vagina.