Im on nexplanon for a little over a month now and I have had no bleeding aside from the 3 days of spotting after insertion. Even though it was inserted on my period I waited the 7 days to have sex unprotected. I didnt even have sex at all those 7 days. Well my boyfriend and i dont use condoms but we pull out. My period is 4 days late and I assume it is just because nexplanon. My cousin hasnt had a period for over a year with nexplanon. Should I be worried? Anyone have experience they'd like to share?