Patient's question:
After obtaining the second child certificate in 2013, my menstrual cycle became abnormal after removing the IUD. The hospital advised me to wait and see.Doctor's answer:
Women should first determine their menstrual cycle before testing. The algorithm considers the first day of this menstrual period to the day before the next period as one cycle (the day of the first blood flow is considered the first day). For most women, ovulation occurs around 14 days before the next menstrual period. Therefore, the days 2-3 days before ovulation and 1-2 days after ovulation are the fertile window, which is equivalent to 4-5 days around the estimated ovulation day being the fertile window. Hence, after starting the test, it is recommended to test at the same time every day. When the color is about to approach the peak value, test every 12 hours until the LH peak is detected.