Can you have a baby after taking emergency contraception once and having one menstrual period?

Patient's question:

No

Doctor's answer:

Hello, if you get pregnant after taking emergency contraception, it is recommended not to, as it can easily cause fetal malformations. The estrogen level in emergency contraception is very high; the dosage for one emergency pill is equivalent to 8 days of regular short-term oral contraceptive pills. Taking too much can lead to gastrointestinal discomfort, menstrual cycle disorders, and ovarian suppression.