Help I don’t understand!!!

Jori

So I’m on the Nexplanon. I was put on it June 2019 and I didn’t have a period and I know that’s normal. And I didn’t have a period up untill steptember this year September 8th 2020. And I’ve had it since. So it’s been 59 days so far with a constant period. What is going on. Anyone else ever have this should I be worried?