What no gestational sac on the ultrasound means gas bloating pregnancy


If the pregnancy is definitely past five weeks, or the hCG level is higher than 2000, a finding of no gestational sac is more likely to indicate a problem. But when there’s no confirmation of hCG levels or any definite evidence of the dating of the pregnancy, the pregnancy might still be in very early stages. In this case, a follow-up ultrasound is recommended. This is one of the most common causes of an inability to see a gestational sac on an early ultrasound, especially in the absence of symptoms such as bleeding. The Pregnancy Is Ectopic

Whenever there is no gestational sac visible in the uterus, there is a possibility of ectopic pregnancy. Ectopic pregnancies (tubal pregnancies) can be life-threatening if not diagnosed before they rupture, so anytime an ultrasound shows no gestational sac, your doctor will likely want to rule out an ectopic pregnancy. This can be frightening, but keep in mind that the absence of a gestational sac is more likely to be related to wrong dates. Even if an ectopic pregnancy is detected, these can be managed well when caught early. An ectopic pregnancy is still a possibility even if you don’t have symptoms of an ectopic pregnancy.

A doctor may be able to diagnose ectopic pregnancy and recommend treatment without a follow-up ultrasound if the hCG levels are high enough that the gestational sac would definitely be visible if the pregnancy was located in the uterus. These pregnancies are not always medical emergencies when detected early, and treatment options are not always surgical. The Pregnancy Is a Miscarriage

If you have experienced early pregnancy bleeding or other miscarriage symptoms, a finding of no gestational sac may mean that you’ve had a very early miscarriage ( chemical pregnancy) or that the pregnancy tissue has already left the uterus.

If there are falling hCG levels along with a finding of no gestational sac, the diagnosis is almost certain to be a miscarriage. As with an ectopic pregnancy, there are different treatment options available if you have a miscarriage. The Next Steps

It can be difficult for doctors to determine right away which of the above explanations is behind a pregnancy with no visible gestational sac. Therefore, it is completely natural to feel concerned and anxious, and perhaps even frustrated. You may be told (or see on medical forms) that you have a "pregnancy of unknown location," which simply means that the ultrasound did not show a gestational sac, and the doctors are not sure whether it is an ectopic pregnancy, a miscarriage, or a very early but otherwise normal pregnancy.

Most likely, you will be asked to come back for a follow-up ultrasound and undergo monitoring of your hCG levels. Together, these repeat tests should give you a clear answer. The wait can be difficult but may be necessary for your doctor to be certain of your diagnosis.

Richardson, A., Gallos, I., Dobson, S., Campbell, B., Coomarasamy, A., and N. Raine-Fenning. Accuracy of First-Trimester Ultrasound in Diagnosis of Intrauterine Pregnancy Prior to Visualization of the Yok Sac? A Systematic Review and Meta-Analysis. Ultrasound in Obstetrics and Gynecology. 2015. 46(2):142-9.