Pregnancy: Only gestational sac is seen but no embryo is seen

Pregnancy: Only gestational sac is seen but no embryo is seen

The importance of the gestational sac is believed to be very clear to women who have been pregnant with a baby. As the initial embryonic tissue, the baby grows slowly from the gestational sac. However, in the early stages of pregnancy, pregnant mothers found that during the prenatal check-up, the gestational sac had grown but there was no fetal bud or fetal heartbeat. How could this happen? This question often confuses many pregnant mothers. Well, next we follow the explanation of authoritative experts to see what the cause of the problem is.

First, B-ultrasound examination is too early

In the case of a recent pregnancy, the development times of the gestational sac, fetal heartbeat and fetal bud are different. Under normal circumstances, the formation time of the gestational sac is about one month; the development time of the embryonic bud and fetal heart is about one and a half months; the development time of the fetal heartbeat is about two months. It is because of the time difference that if a pregnant woman has a prenatal checkup too early, it is very easy for the gestational sac to grow but there is no fetal bud or fetal heartbeat.

Second, pregnancy time is relatively late

This is also one of the reasons why there is a gestational sac but no fetal bud or fetal heartbeat. The menstrual cycle and ovulation cycle of each pregnant woman are different. For those pregnant women with a later ovulation period, they may become pregnant later than others. Although the pregnancy cycle is the same, the specific pregnancy time is different, which may lead to the situation that the gestational sac grows but there is no fetal bud or fetal heart.

Third, the test tube embryo terminates growth and development

After we have eliminated the two reasons for appeal, we need to consider two less optimistic situations. First of all, the test tube embryo has stopped developing. If during the B-ultrasound examination, the gestational sac is found to be growing, but the fetal bud and fetal heartbeat are delayed and not appearing, it is very likely that the test tube embryo has stopped developing. The reason for this situation is mostly related to some viral infection during pregnancy.

Fourth, poor sperm quality

If there are some problems with the man's sperm, such as poor quality, or there are some problems with the sperm itself, which causes it to not grow normally during the growth process, the embryo will stop growing. At this time, the gestational sac may grow larger but the embryonic bud and fetal heart may not be seen.

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