I had just ended my period on October 30th and that night there was penetration for less than a minute, no ejaculation, but was worried about precm. 12hours later I took Plan B, both doses and the same time and didnt vomit not did I experience any side effects. Four days later, and during the time my ovulation wi dow would begin, I statted bleeding enough blood to make it seem like it was my period. However it only laster a four days whereas my usual period would last 5-6 days. Two weeks later (Nov. 18th), i started ovulating and if i count 12days from there I should get mynext period on Nov. 30th (today), but no sign of getting it. My expected period from the end of my october 30th period should have been Nov. 23rd so Im exactly a week late. I was wondering ifthe four day bleed was my early period, and when my next period should come. What are the chances of pregnancy?