Gestational sac size at 7 weeks of pregnancy

Seven weeks of pregnancy is usually considered the early stages of pregnancy. The early stages of pregnancy are the most critical, because if the gestational sac cannot develop well and healthily in the early stages of pregnancy, it will affect the development of the fetus. The size of the gestational sac can be seen at seven weeks of pregnancy. Pregnancy tests are usually done to monitor the development of the gestational sac. Therefore, prenatal check-up is very critical and necessary for pregnant women. It is an examination that needs to be done at every stage of pregnancy. So what is the size of the gestational sac at seven weeks of pregnancy?

How big is the gestational sac at 7 weeks of pregnancy

At the 7th week of pregnancy, the embryo is approximately 1.33 cm long. At this point the embryo already has the rudiments of a human being; the body segments have all been differentiated, the limbs have begun to separate, and various systems have further developed. The embryo and fetal heartbeat can be clearly seen during B-ultrasound examination. The gestational sac has grown a lot and occupies about 1/3 of the uterine cavity.

What is the reason for a small gestational sac during pregnancy?

1. Some women may experience emotional tension during the pregnancy preparation period, which may cause delayed menstruation or ovulation. These reasons may make it impossible to calculate the exact date of conception after pregnancy, so during prenatal check-ups for some pregnant women, the size of the gestational sac may be different from the actual number of weeks.

2. A small gestational sac may be caused by physiological or pathological reasons. A small gestational sac does not necessarily mean that you must have an abortion, but if it is indeed inappropriate to continue the pregnancy, abortion is the best option. Although aborting a child you truly desire is a cruel thing to do, it should still be done for the sake of the child's health.

3. The gestational sac should be relatively small at 40 days of pregnancy. If the gestational sac is smaller than the standard value through B-ultrasound examination, there is no need to worry, as it may be related to late implantation of the fetus. It may also be related to the mother's delayed menstruation.

Therefore, in the seventh week of pregnancy, the gestational sac occupies almost one-third of the uterine cavity, so the gestational sac at this stage can be said to be quite large. However, some pregnant women do not have such a gestational sac when they reach the seventh week of pregnancy, and the gestational sac is relatively small. This may be related to the virus infection during pregnancy. Therefore, if a pregnant woman finds that her gestational sac is smaller than normal, she should seek help from a doctor.