Gestational Sac

The fluid-filled cavity surrounding the embryo is called a gestational sac. It is the first sign detected in an ultrasound during early pregnancy (around 3 to 5 weeks).

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I have a thick endometrium and no gestational sac. Can I be pregnant?

Query: Hello doctor, I took a home pregnancy test 44 days after my last LMP. I underwent my pelvic scan today and it says I have no gestational sac and have a thick endometrium. I have very mild bleeding for the past two days and slight press on my right lower abdomen. My doctor has suggest...  Read Full »


Dr. R Balakrishnan Menon

Infertility Specialist, Obstetrician And Gynaecologist

Answer: Hello, Welcome to icliniq.com. You can definitely take a long flight. What you had was a biochemical pregnancy meaning pregnancy hormones only in blood and urine and not on the scan. Urine pregnancy is positive when the blood level of beta hCG (human chorionic gonadotropin) hormone is 25 IU/mL. B...  Read Full »

What does irregular gestational sac in ultrasound mean?

Query: Hello doctor, My 8 weeks ultrasound showed an irregular gestational sack. It is mostly round but sort of pointed in one location. What does this mean? Fetal pole 158, measuring 8 weeks and 1 day gestational age. Please explain.  Read Full »


Dr. Jimesh H Mavani

General Practitioner, Obstetrician And Gynaecologist

Answer: Hi, Welcome to icliniq.com. If fetal cardiac activity is present and pregnancy is 8 weeks on ultrasound. If you do not have any pain or bleeding per vaginal than there is more chance that with medicines pregnancy has more chance for growth. Irregular gestational sac sometimes can be due to uterin...  Read Full »

Why is my gestational age a week more than my last menstrual period?

Query: Hi, My last periods was 4 weeks 5 days back, and I discovered that I am pregnant when I checked using the home test. However when we went for a scan today the doc says the sac measures 1.75 cms and it is 5 weeks 5 days. Why is there a difference of one week when from last period which is 4 weeks 5 ...  Read Full »


Dr. Sravanthi Nuthalapati

Obstetrician And Gynaecologist

Answer: Hello Momo, Welcome to Icliniq. There is nothing to be worried about in this calculation as it's just the machine readings. you can just follow your actual dates for gestational age calculations. As per your dates your gestational age is 4wks 5days. You mentioned that Gestational sac diameter is 1...  Read Full »

Why does the ultrasound show no gestational sac despite being pregnant?

Query: Hello doctor, I had my last periods 51 days back. 13 days back my home pregnancy test was positive. But, no sac seen in ultrasound. When we checked at home 10 days before, again it showed positive. Sac was not seen today too. My hCG report is 188.19 mlU/mL. Please advise what to do.  Read Full »


Dr. Shruti Kainth Kaushal

Obstetrician And Gynaecologist

Answer: Hi, Welcome to icliniq.com. As per your history, it appears that you are in 5 weeks of pregnancy. At this time the gestational sac should be there. But, do not worry as your beta-hCG is showing pregnancy levels. You should wait for one week and get the ultrasound repeated preferably a transv...  Read Full »

There is no yolk sac and fetal pole in gestational sac. Why?

Query: Hi doctor, I am six weeks and six days pregnant. My urine test is positive and beta hCG is also increasing but I am very upset about my ultrasound report. There is gestational sac in my uterus but from last week there is no yolk sac and fetal pole. I have a dark brownish discharge from six days wit...  Read Full »


Dr. Uzma Arqam

Obstetrician And Gynaecologist

Answer: Hi, Welcome to icliniq.com. You are receiving enough supportive treatment. In case of discrepancy between dates and scan, yolk sac and fetal pole could appear but there is continuous brown discharge which is risk actually. Have a complete avoidance of restricted activities that can trigger a misca...  Read Full »

Please explain the normal features of early pregnancy.

Query: Hello doctor, Two weeks ago I had 10 positive home urine pregnancy tests. I consulted with my obstetrician and they sent me for two blood tests 48 hours apart. The blood test showed my hCG level more than doubled within 48 hours which the obstetrician said was great. Well because I have irregular ...  Read Full »


Dr. Sameer Kumar

Family Physician, Obstetrician And Gynaecologist, Infertility Specialist

Answer: Hello, Welcome to icliniq.com. In early pregnancy, by six weeks of gestation, the gestational sac is often not seen and only decidual reaction can be appreciated in the uterus, but as the hCG levels are doubling, there is definitely a viable ongoing pregnancy either inside or outside uterus, so a re...  Read Full »

Does absence of fetal heartbeat on ultrasound confirm abortion?

Query: Hello doctor, My wife is six weeks and five days pregnant. In the fourth week, she got pain in the stomach and back. So, there were two ultrasound reports. The first was taken in five weeks and six days where the gestational sac was 2.33 cm with no heartbeats found. The second ultrasound was six w...  Read Full »


Dr. Sravanthi Nuthalapati

Obstetrician And Gynaecologist

Answer: Hello, Welcome to icliniq.com. This looks mostly look like a missed abortion. Usually by six weeks or later, the heartbeat appears on the scan provided. You seem to have regular periods. For more information consult an obstetrician and gynaecologist online --> https://www.icliniq.com/ask-a-d...  Read Full »

Can I get advice in week 5 scan of IVF pregnancy ?

Query: Hello doctor,I need advice in week five ultrasound for IVF pregnancy. hCG has been doubling appropriately.  Read Full »


Dr. Chitrangada

Radiodiagnosis Physician, Radiologist

Answer: Hello, Welcome to icliniq.com. The scan (attachment removed to protect patient identity) shows a single intrauterine gestational sac of about four to five weeks. However, the sac is a bit irregular. It could indicate early failure. A follow up with transvaginal ultrasound is recommended in one wee...  Read Full »

Is abortion necessary if ultrasound shows no gestational sac?

Query: Hello doctor, I had LMP 40 days back and positive pregnancy report but after six weeks, ultrasound mass is there but no gestational sac. The doctor has advised to go for abortion. I am confused. Kindly help.   Read Full »


Dr. Uzma Arqam

Obstetrician And Gynaecologist

Answer: Hi, Welcome to icliniq.com. There are many scenarios in addition to normal healthy pregnancy in early pregnancy like missed miscarriage (baby died or did not get heart beat), ectopic pregnancy (pregnancy growth outside normal location in female body where it is harmful to both mother and developin...  Read Full »

Please explain my nuchal translucency scan report.

Query: Hi doctor, I am 13 weeks pregnant. My nuchal translucency report read 'small linear septum noted along the left lateral aspect of gestational sac synechia, and no fetal part is seen near the septum.' What does this mean? Is it a critical problem? Please help.  Read Full »


Dr. Garima Sawhney

Obstetrician And Gynaecologist

Answer: Hi, Welcome to icliniq.com. This is not inside the fetus. This will not harm the fetus. If this has not troubled your pregnancy till now, it should not trouble you in future also. But, if it troubles, then it might lead to a miscarriage. Nothing can be done for the same at present. Thanks. For mor...  Read Full »

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