Question
The patient inquires about the probability of pregnancy based on their sexual activity time and menstrual cycle, using the ‘seven before and four after’ absolute safe period calculation algorithm to assess the possibility of conception.
Answer
The doctor advises that, based on the information provided by the patient, using the ‘seven before and four after’ absolute safe period calculation algorithm to assess the probability of pregnancy is unlikely, but not impossible. Moreover, the doctor reminds patients that long-term use of birth control pills may affect menstruation, and it is recommended to use them no more than three times a year.