Nexplanon Implant

So I have had the implant in for almost a year now and I think it's normal but I no longer get my period.. like not a drop.. ever! When I first got it I bled for about 7 weeks straight and then had two normal periods after that and then it just stopped. Has anyone else had this experience? Or even on the same BC, I also think it's making me gain a little weight. Not too much but maybe just lowering my metabolism. Anyone else?