About 3 weeks ago I was doing anal with a guy and he decided to come right on my vagina like the dumbass he is. I went and took plan B because i know the chance of it going up is still possible. It was also the last day of my period. Now i’ve been cramping and having tons of watery discharge but my period isn’t due til thursday. Do I even really have to worry about being pregnant or are the chances super low ? Also I felt like ovulation cramps in my left side last week almost but maybe it was just regular cramps. Could that be a sign the plan B didn’t work ? Basically, Do I really have to worry ?