i'm on a combination pill and i take it daily but the time of night i take it varies. about 5 days ago me and my bf were messing around in underwear, we dry humped and he fingered me (a few min after touching his penis) for the past 2-3 days i've been having brown discharge, which i have never had between periods. my period is due in 9 more days. i also started on 20 mg of an antidepressant a few days ago and i'm not sure if the hormones in that caused the spotting or the fact that he fingered me and i haven't been fingered in a while, but i've been worrying that it's implantation spotting. could i be pregnant?