period surprise

So I got the nexplanon birth control around February of 2015, about 11 or so months later, my period stopped. It was great, I had no spotting, no cramps, nothing. Then recently, I started having a lot of weird smelling discharge. It wasn't quite abnormal, but I guess vaginal discharge is just always going to have a weird smell. Anyway, later I began having orange discharge (this started two days ago) and it freaked me out because I looked up what it could possibly be and I thought of the worse case scenario. This morning I woke up and saw I had started my period. I was both relieved and annoyed, lol