Am I Pregnant When I Missed My Period And Had Bleeding After?

I m 23 years old, I usually get my periods on 20 but my bf rubs his penis over my vigina on 15th of april after this incident I didn t get my periods ... After 10days of missed periods I took urine test which was negative and I took Gyneocosid tblt .. on 2nd may I took pelvic scan which shows that uterus is normal in size, both ovaries are normal, endometerial cavity 4.5mm , no adnexal pathology and no free fluid in cul de sac ... After that I started bkeeding on 6th of may but I was not mentally satisfied I took beta hcg blood test on 8th may which was 2.30 ... AM i pregnant ?