How to calculate the expected date of delivery? Teach you six ways to easily grasp the baby's birth time.

Expectant mothers, are they often confused about how to accurately judge the baby's expected date of delivery? Don't worry, we provide you with six calculation methods, so that you can easily grasp the baby's birth time.

Calculated according to the last menstruation

This is the most commonly used calculation method. Just add 9 or 3 to the month of the last menstruation and 7 to the number of days, and you can easily get the expected date of delivery.

According to the date of fetal movement

It doesn't matter if you don't remember that you were in the last period of the late Qing Dynasty. As long as you add 20 weeks (primipara) or 22 weeks (multipara) to the fetal movement day, you can get the answer.

Calculated according to the basal body temperature curve

Take the last day of the low temperature stage as the ovulation date, count back 264-268 days, or add 38 weeks, and you can get the expected date of delivery.

According to the b-ultrasound examination.

Doctors can estimate the gestational age and expected date of delivery by measuring the diameter between the first two parietal parts of the fetus by B-ultrasound.

Time calculation from morning sickness

Morning sickness usually occurs at the end of 6 weeks of pregnancy, so the estimated expected date of delivery is 280 days.

According to the height of the fundus, it is roughly estimated that

At different stages of pregnancy, the height of the uterus is different, and the expected date of delivery is roughly estimated.