Nowadays, the commonly used contraceptive pills are short-acting oral contraceptive pills and emergency contraceptive pills. These two contraceptive pills have been proven through a large number of studies to have no effect on the development of the child and no increase in the incidence of fetal malformations if the pills fail to produce a pregnancy. If you want to have a baby and get pregnant after the pill has failed, you can have the baby and do regular pregnancy checkups, because there are many reasons for abnormal fetal development. For the abnormal fetal development caused by taking the pill, there is no clear evidence yet, so there is no need to worry for the time being.