Emergency contraceptive

Aja

So I am not on birth control. I have short reasonable periods. On the 21st I was within my ovulation window. I had sex and the condom came off and I had sperm in me. I took an emergency contraceptive pill the next morning. Yesterday and the day before I did have slight cramps and super light pink pots when I wipe. . My period is due on Monday. Any have luck with not getting pregnant with a similar situation?