Today I went to the bathroom peed ,wiped and there was light blood. So I figured I was about to start my period because I had slight cramps this happened two days ago also. But I had no cramps, but anyway now there's no bleeding no cramps nothing . I'm on BC I have the nexplanon implant ,it could it be it just changing my period . I never heard of anyone getting pregnant with it . I have sex with my fiance a lot and haven't gotten pregnant yet . so could it just be the BC be the cause of it .