How long does the emergency contraceptive pill take to take effect?

Patient's question:

No

Doctor's answer:

Side effects of birth control pills may include endocrine disorders, menstrual disorders, amenorrhea, infertility, or gastrointestinal discomfort, headaches, weight gain, nervousness, low mood, skin hyperpigmentation and acne, etc. Birth control pills should not be used more than three times within a year, and only once between each month. It is recommended that you adopt other contraceptive measures.