I've been on the Implanon Implant 3 years last month. I won't have Ins to take it out and replace it for another month. Ive been having regular periods for the past few months and having cramping this last month. would that be a side affect of it being overdue? I don't think I'm Pregnant as i just had my cycle 2 weeks ago. but i just want to know the likely hood of me becoming pregnant and if its happened to others before How likely is it for me to be able to get pregnant... overdue implanon?