so I got the arm implant about 3 months ago but never went to my check up visit. I had sex last night and he came in me and I'm cool with that bc of the implant. The only thing is that with this implant, I don't really have a period, and if there's anything there's just spotting. I also don't know how to track my period because I don't know if it's actually happening or not. I think i'm just wondering if I should take plan b? because not having a period isn't gonna be any kind of indicator if I was supposed to have missed it (hopefully not)