How to find out the exact date of conception

Check the precise day of conception, can pass through the last menstruation, B ultrasound examination, especially in the case of menstruation is more regular, the last menstruation is more accurate, some people menstruation irregular, it needs to be verified by B ultrasound. This method can be used to calculate the expected date of pregnancy. If the expectant mother's menstrual cycle is not very regular, or if the expectant mother forgets the time of the last menstrual cycle, but remembers when to show nausea, vomiting, etc., this method can be used to calculate the expected date of pregnancy. The expected date of birth = 24 weeks of conscious fetal movement. In addition, if the woman has no way to calculate the date of conception, she can go to the hospital for relevant examinations to accurately calculate the time.