*Period info* Cause for concern??

I have had my period every 5 days for about a month now. I have the nexplanon implant birth control in my arm. I have had it for about a year now and I haven't had issues like this with my period since I got it. It's fairly light weight to medium flow never heavy but I'm worried that something isn't right? I am going to call the doctors soon about it I'm just trying to get more input. Please comment if you have any! Thank you.