Period or sometimes period?

My periods are very strange, non existent or a very light showing. (Except for this last cycle, it seemed very normal actually. Which is surprising.) I’ve talked to a doctor and have done tests but they seem to think nothing is wrong with me and that my system just needs to be rebooted with possible birth control to regulate my hormones and cycle. I haven’t been back to the doctor since simply because I am terrified. Buuuuuuut.... I am not a fan of birth control. I have my reasons as to why I don’t like the idea of birth control but I am wondering if any other women out there have this same problem too? What did you do? Anyone do something natural that helped regulate your monthly visitor?