Period on nexplanon

I got my BC implanted may 2019 . In July i got my period for 92 days. After that i never got it again until now. I had it for about 8 days then it seemed like it stopped . I had sex with my boyfriend and it was a little bit of friction which obviously lead to a little bleeding the next day (spotting). But now 2 days later, I’m bleeding like it’s my period. Is this normal or happened to anybody else ?