I took a plan b before starting the pill (doctor knows about that) and been on it for two months now. First period was fine and came when I expected it too, however I've counted how many days before my next period and I'm suppose to be getting it this week. I've been having some mild cramping and some discharge and took a HPD just to check, and it came back negative. I've been also under a lot of stress with school and work so could this all just be my hormones out of line from so much going on or could it potentially be that I'm pregnant?