I'm almost sixteen and about a year ago my parents put me on the nexplanon birth control. It's an implant in my arm and it has caused my periods to be very weird. I was just on my period for two months straight(the whole two months) and had to regulate it by taking birth control pills for a week. It stopped my periods but I think I accidentally started it again. I regularly masturbate with no insertion but sometimes I do use something to masturbate. Yesterday I did and I started bleeding, and woke up this morning to find dried blood in my panties and I think it may have caused me to start my period again. I've never had actual sex and this scares me. Can someone explain if this is normal or if I've done something wrong?