So on CD 14, which was my day after ovulation, my boyfriend and I had sex. When he ejaculated, his sperm landed on top of my vagina and on my inner thighs. we cleaned it up immediately and I took plan b about 1-2 hours later just to be on the safe side. I was supposed to start my period today but so far it hasn't come. I have been experiencing pain in my left ovary which could be implantation pain but everyone tells me I'm just being paranoid. Do you guys think I'm pregnant? or is the plan b just messing up my period? I really need help- my boyfriend is so sick of me asking and its putting a stain on our relationship. Thanks everyone.