Nexplanon?! Help please!

Have had nexplanon for almost a year now, never missed a period until now I'm about ten days late but I've been having symptoms (cramps, super hungry, tired) besides bleeding this entire time like usual except like a lot of bubbly/pushing feelings in my lower gut area. I was wondering what anyone else who's used this has experienced with missing periods and what that felt like. I just don't want to be pregnant 😩