I've had the implant for almost a year now. In the first few months I had red/brown discharge and no periods, since then I haven't had any periods or any of this kind of discharge. Yesterday I got period cramps and now today I have this brown discharge again like I got at the start. Is this normal? Do I have anything to be worried about? I'm just confused as it is so long after i had it inserted, and I haven't been having periods