Nexplanon help!!

Okay so I actually really love nexplanon since the moment I got it, it did make my hormones go crazy for a couple months, I was super emotional and angry but I just New it was going to happen so I just had to deal with it.. but after that everything was normal, one of the better perks that ended up happening in my body is that my period completely stopped, it’s different for everybody but I personally enjoyed not having my period of course it was kinda scary at times because well I never had assurance that I wasn’t pregnant but other than that it’s been GREAT! So anyways hopefully someone can help, I got the implant back in September of 2017 so since this last September of 2019 its officially the last year so that the 3 years can complete, so I have one year left with it so what I’m freaked out about is that this last month my period came back after 2 YEARS!? And I’m just wondering if the implant is worn out which is why my period came back or is it normal? Has this happened to anyone, point is I don’t want to end up pregnant because the implant just was giving me these signals you know? So if anyone’s has experienced this can y’all help me! Thanks😭