If the menstrual period is very normal, that is, once every 28 days, the period from pregnancy to delivery is 280 days, that is, when you calculate from the first day of the menstrual period to 280 days, it is the delivery date. It is normal for pregnant women to give birth within the first half month and the second half month of the due date. If your menstruation is irregular, you should calculate the baby's size according to the first B-ultrasound during pregnancy to determine the due date. The error of the baby's size by B-ultrasound in the early stages of pregnancy will not exceed one week, so irregular menstruation should be based on B-ultrasound examination as a basis for calculating the expected delivery date. Six weeks of pregnancy is 42 days. The duration of a woman's pregnancy is usually measured in weeks, and if the pregnancy reaches full term, it is 40 weeks. The 6th week of pregnancy is called the early stage of pregnancy. Some test tube embryos have already detected fetal heartbeats, and the test tube embryos are still relatively small. This is the stage when the key organs of the test tube embryo are dividing. Taking medicine or using harmful substances will have a great impact on the test tube embryo, so you must be very careful. It is also very easy to have miscarriage and threatened abortion at this time. This is because the test tube embryo and the uterine wall in the uterus do not seem to be very solid, so you must pay attention to rest in the early stages of pregnancy, and it is best not to have sex within 3 months. In the early stage after a woman becomes pregnant, the HCG value can be used to judge the status of embryo development. Whether the test tube embryo is normal can also be judged by the HCG value. Under normal circumstances, the HCG value at 6 weeks of pregnancy fluctuates mostly between 5000-5000b250IU/ml. The large fluctuation range of HCG values is mainly because the female's secretion of trophoblasts will continue to increase during pregnancy, and will double every other day. Therefore, the large fluctuation range of the value at 6 weeks of pregnancy is related to early ovulation and late ovulation, so there will be a large fluctuation range. In the early stage, if you want to know whether the embryo development is normal, you can use the blood HCG doubling every other day to reflect the status of the test tube embryo. If it doubles every other day, it indicates that the embryo development is normal. |
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