I am 17. It's been 11 days since there has been an accidental touch of penis near my vaginal area. I don't exactly recall where. He had precum maybe. It touched only for a fraction of seconds. There had been a pregnancy scare ever since. I had tried out various home remedies for inducing early periods or miscarrying. My periods started 2 days ago. But I am confused whether it's implantation bleeding. The blood is bright red, but lighter than my usual periods. It contains a few clots too. I had been experiencing stomach cramps but no symptoms of pregnancy. Is there any possibility of me being pregnant?