I took plan B 8hrs after my guy ejaculated and my panties got socked with sperm . I don't some entered me . a week after plan B I got sore breast , egg white cervical mucus and pain on my left ovary Which went away after a week.

next period after the plan B incident is 16 days late. And currently am experiencing constant severe ovary pains with both my ovaries, plus I have cramps in my leg and a tingling pain sensation my breast that comes and go. I took a urine pregnancy test 4 days ago and it was negative . Did the plan B fail , am I pregnant please help.