I had sex with my boyfriend for the first time. When he was about to ejacuate he took his penis out and the sperms got ejacuated on the floor. But I saw a white spot on the opening of vagina. I dont know it was his or my fluid. I urinated twice immediately after sex. But when I urinated after an hour, there was a white drop along with urine. Do I have the chances to get pregnant? If so, what should I do now?