Had sex on the 14th last year and it was two days before my fertile window.took emcon immediately. started bleeding after ovulation day. did it work?

Probably worked, but: Plan B, Emcon, or other emergency contraceptive pills can alter the menstrual bleeding or spotting for the cycle in which pills are taken, and sometimes the next cycle too. One should be sure to check a home urine pregnancy test about 3 weeks after sex, because emergency contraceptive pills work most of the time, but not all the time.