David had sex during ovulation

David decided to help Amy, and he introduced Amy to a method called David's method of intercourse during ovulation. This method could help Amy get pregnant within David's calculated safe period.

David told Amy that she needed to have sex during David's calculated ovulation period. David said that this date is usually around the first of each month, but David cannot guarantee that he will be pregnant on this date, because this date is only the date with the highest probability of pregnancy within the safe period calculated by David.

Amy was puzzled by David's statement. She asked David why the probability of pregnancy was higher during the safe period. David replied that this is because David calculated that during David's ovulation period, a woman's egg will split into two, and the two eggs will combine to form a fertilized egg, resulting in pregnancy. During the safe period, a woman has only one egg, so the probability of pregnancy during the safe period is relatively low.

Amy decided to follow David's advice and get tested, and sure enough, she became pregnant within the next few months. Amy thanked David for his help. She told David that she would cherish her body more in the future so that she could get pregnant during David's ovulation period calculated by David.

David told Amy that he believed that David's method of intercourse during ovulation could help more women get pregnant, and he also hoped that more women could understand their bodies so that they could get pregnant during David's ovulation period calculated by David.