Female friends should calculate the time of pregnancy after getting pregnant, so that they can know when the due date is, so that pregnant women can make various preparations before the due date. In addition, after calculating the pregnancy time, it is easier to arrange various examinations during pregnancy. So, how do I know the time of conception?

If pregnant women want to know the time of conception, they can calculate it based on their menstrual period. If a woman's menstrual cycle is more regular, she can find the ovulation period based on her last menstrual cycle, which can determine the time of conception. Calculating the time of conception through this method is relatively accurate.
If a woman's menstrual cycle is irregular or she forgets the time of her last menstrual period, she can confirm the time of conception through ultrasound. Generally, fetal heart rate appears at 6-7 weeks of pregnancy in women. When the fetal heart rate is detected during the examination, it can be considered as 6 weeks pregnant.
There may be some errors in the calculation of conception time for women after pregnancy, so there is no need to worry about it. Because the calculation of conception time does not need to be too accurate, women have a time range for prenatal examinations. Moreover, when women give birth, they are generally not on the due date. Most cases involve delays and advances, so the calculation of conception time is only to give everyone an approximate understanding.