Answer:
72
Explanation:
Most of emergency contraception pills are made of levonorgestrel, and they can be taken after 72 hours or 3 days after intercourse. However, the effectiveness of the pill decreases with every hour. According to research (Paediatrics & Child Health Vol. 8, Issue 3, March 2003, p. 181–183), if taken:
There is other type of emergency made of Ulipristal acetate. This one can be taken up to 120 hours or 5 days after intercourse.