Some women take the emergency contraceptive pill after intercourse and still end up pregnant, does it have an effect on this baby? Let’s first understand what is the emergency contraceptive pill. The main component of the emergency contraceptive pill is the progestin levonorgestrel. This type of medicine mainly plays a contraceptive role by inhibiting ovulation, preventing the sperm from combining with the egg, and preventing the fertilized egg from being laid in the uterus. The success rate of these pills is not 100%, but around 80%, so there is still a 20% chance that a woman will become pregnant after taking these pills. If the pill does not succeed in suppressing ovulation, preventing the union of the sperm and egg, or preventing the fertilized egg from being laid in the uterus, then pregnancy will occur. According to the all-or-nothing theory of taking the pill in early pregnancy, the effect of a failed emergency contraceptive pill on the baby is not if there is no miscarriage, that is, if you want to keep the baby, don’t abort it easily because you took the pill.