How long does it take for menstruation to stop during pregnancy?

For women with regular menstruation and a 28-day cycle, their periods will stop after 14 days of pregnancy. The length of the physiological cycle depends on the follicular phase. If the follicular phase is long, the menstrual cycle will be long, and if the follicular phase is short, the menstrual cycle will be short. The follicular phase is relatively fixed, lasting approximately 14±2 days (12-16 days). If you are not pregnant, your menstruation will start 14 days after ovulation, or you can understand it as the ovulation period 14 days before the next menstrual period. The embryo implants 7 days after ovulation and fertilization. The early embryo after fertilization is like a small tree, planted in the soil layer (uterine wall) on the 7th day after fertilization.

Generally, menstruation will stop after pregnancy. If the menstrual period is relatively regular, after one menstruation, if you are pregnant, you will not have your period the next time. This is called amenorrhea in clinical medicine. It is an early symptom of pregnancy. This phenomenon usually indicates that you are pregnant. If your period is delayed for more than 3 days, you can buy a pregnancy test strip and test it with your morning urine. If you are pregnant, two obvious green lines will appear.

You can also go to the hospital for a blood chorionic gonadotropin test, which can help you find out whether you are pregnant earlier, even before your period ends. However, the most accurate test for diagnosing pregnancy is ultrasound examination. It requires that the menstrual period is more than 10 days late. The gestational sac in the uterine cavity can be seen through B-ultrasound, which can confirm that it is a normal intrauterine pregnancy.

For women who are already pregnant, amenorrhea will occur as long as the pregnancy begins. Because women's ovulation period is about 14 days before the next menstruation, if you have sex on the ovulation day and get pregnant, you will not have menstruation symptoms and your menstruation will stop at this time. However, some women may still experience bleeding after becoming pregnant, which they regard as menstruation, but in fact it is often a manifestation of threatened abortion or ectopic pregnancy. Generally, women with normal pregnancy will not have obvious vaginal bleeding.