No gestational sac after two months of amenorrhea

A clear sign of pregnancy is amenorrhea, which is the temporary cessation of menstruation. Some people may encounter unexpected situations in the early stages of pregnancy, such as discovering that there is no gestational sac during a pregnancy check-up. This is probably a sign that the embryo has not developed well. Most of these conditions can be detected early in pregnancy. This also indicates that the conception was unsuccessful, but why is there no gestational sac after two months of amenorrhea?

An empty gestational sac means that the embryo has not developed well. There are many reasons for this, such as poor sperm quality and environmental factors that can affect embryonic development. Sometimes an empty gestational sac can also occur if the fertilized egg is late.

The gestational sac is only seen in early pregnancy. For women whose menstruation is regular every 28 to 30 days, after 35 days of amenorrhea, the gestational sac can be seen in the uterine cavity by B-ultrasound. The diameter of the gestational sac is about 2 cm at 6 weeks of pregnancy and about 5 cm at 10 weeks of pregnancy. It is normal for the gestational sac to be located at the fundus, front wall, back wall, upper part, or middle part of the uterus; it is normal for it to be round, oval, and clear in shape; if the gestational sac is irregular in shape, blurred, and located in the lower part, and the pregnant woman also has abdominal pain or vaginal bleeding, she may have a miscarriage. The gestational sac is the primitive placental tissue, a small embryo wrapped by the amniotic membrane and vascular network. The gestational sac is the initial form of pregnancy. At that time, the fetus has not yet formed, and the fetal heartbeat is already there when the embryonic bud appears. In the second week, the embryo implants in the endometrium. When it develops into the second germ layer, a large cavity called the primary yolk sac appears on the ventral side of the embryonic disc. The yolk sac continues to shrink and degenerate during embryonic development, but the extraembryonic mesoderm on the wall of the yolk sac is the earliest origin of the formation of blood cells, blood vessels and primitive germ cells - the gestational sac, where the fetus will grow in the future.

Since the discovery of the gestational sac has proved that a fetus can survive outside a woman's uterus, it is no longer a dream for a man to become pregnant. However, it goes against the laws of nature, and the medical community is not keen on studying it.

Whether the pregnancy can continue can only be determined after one week of dynamic observation. Under normal circumstances, a small gestational sac may be due to emotional tension, which may cause the expectant mother to delay her menstruation, ovulate later, and conceive later, resulting in a gestational sac that is smaller than the actual number of days of amenorrhea. For example, the menstruation has not stopped for 50 days, but the examination finds that the gestational sac is only about the size of a 40-day gestational sac. It is normal for the gestational sac to be small. As long as a dynamic examination for one week shows that the levels of chorionic gonadotropin and progesterone are gradually increasing, the gestational sac continues to grow, and the fetal bud and fetal heart gradually appear, it means that the small gestational sac is due to physiological reasons and the pregnancy can continue.

If the gestational sac is underdeveloped and smaller than normal due to infection with mycoplasma, chlamydia, rubella virus, etc. during pregnancy, the gestational sac is unhealthy and will eventually lead to miscarriage. It is best to go to a regular hospital for a curettage, find out the cause and treat it symptomatically, and then get pregnant again after one year.