Advice

I haven’t gotten my period since mid September last year I’m not sexually active and haven’t been for far longer than 9 months so not I’m not pregnant. I took a blood test in October and the doctor there said everything looked normal and my OBGYN keeps canceling on me(happened already twice). I won’t see her till I get out of school(May). I used to be close to underweight and prediabetic due to diet issues in high school but I’ve worked on that and improved what I eat somewhat and I gained weight to where I was healthier. Should I look into getting birth control on my own or wait to see her?

P.S. can’t drive cause no car and she’s the only one I’ve seen that knows my history fully.

I just don’t know wtf is wrong with my period but low key don’t miss getting it monthly(usually now only 1x-2x a year)