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Doctor insights on: 5 Weeks Pregnant With Sac But No Yolk Sac

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Dr. Bernard Seif
4 Doctors shared insights

Pregnancy (Definition)

When your due date arrives, you will be more than ready to have your baby! Most women deliver the baby somewhere between 37 and 42 weeks. According to the American College of Obstetricians and Gynecologists, only 5% of babies arrive on the exact due date. Approximately 7% of babies are not delivered by 42 weeks, and when that happens, it is referred to ...Read more


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My fiance's ultrasound indicate she's 5 weeks pregnant & with yolk sac but no corpus luteum. Can this be treated? Can baby survive without it?

My fiance's ultrasound indicate she's 5 weeks pregnant & with yolk sac but no corpus luteum. Can this be treated? Can baby survive without it?

Yes: The corpus luteum is a cyst that forms on the ovary on the side where the egg that became fertilized came from. It typically provides Progesterone to support the baby early on before the placenta forms, but fairly often they are not seen and pregnancy progresses normally. The yolk sac has a similar job. At 5wks, a follow-up scan is needed to document normal growth and a heartbeat (7-8 wks). ...Read more

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I am 5.5 weeks pregnant and the ultrasound shows a yolk sac but no embryo. My blood work came back normal. Should I be concerned?

I am 5.5 weeks pregnant and the ultrasound shows a yolk sac but no embryo. My blood work came back normal. Should I be concerned?

Likely normal: At 5.5 weeks the ultrasound may not reveal the embryo just yet. Repeat ultrasound in 1 week and the embryo should be visualized then. Good luck. ...Read more

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I am 5 weeks pregnant and I am having a slight bleeding ultrasound saw no yolk sac plus my hCG lowered a day later. Am I going to have a miscarriage?

I am 5 weeks pregnant and I am having a slight bleeding ultrasound saw no yolk sac plus my hCG lowered a day later. Am I going to have a miscarriage?

Possibly: These are concerning findings, keep in contact with your doctor to follow up closely, sooner if bleeding increases or any new symptoms appear. Also know this is very common in early pregnancy. Be sure to talk to your doctor before getting too worried or coming to any conclusions. ...Read more

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Ultrasound showed 5 weeks pregnant instead of 7 with no yolk sac n fetal pole gestational sac 1.6cm with corpus luteal cyst of preg 31mm miscarriage??

Ultrasound showed 5 weeks pregnant instead of 7 with no yolk sac n fetal pole gestational sac 1.6cm with corpus luteal cyst of preg 31mm miscarriage??

Not yet: These are approximate dates. There is a week error at this phase. And dates could be off as well. It is best to wait a week or two and also measure the blood for the hormone levels of HCG. Then you will have a better measure of how things are going. ...Read more

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IVF, 7 weeks pregnant but scan shows 6 weeks, 1 five day blastocyst, I have 2 gesational sacs, one has a fetal pole and yolk sac and 2nd has nothing???

IVF, 7 weeks pregnant but scan shows 6 weeks, 1 five day blastocyst, I have 2 gesational sacs, one has a fetal pole and yolk sac and 2nd has nothing???

Repeat Ultrasound: After IVF, one can see several different scenarios. It is best to wait and repeat the ultrasound. Do not feel anything is wrong till a repeat ultrasound is done. Early ultrasounds can be confusing. Sometimes, twin pregnancies happen even with 1 blastocyst transfer as the blastocyst can divide. However, growth discrepancy can happen and one may survive and the other may not. Good Luck! ...Read more

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6w3d preg since LMP, scan show gastro sac but no yolk sac, what does that mean? Etopic pregnancy? Scared!

6w3d preg since LMP, scan show gastro sac but no yolk sac, what does that mean? Etopic pregnancy? Scared!

Gestational sac?: Do you mean gestational sac instead of Gastro sac? At 6+3 wks I would expect to see an embryo with a heartbeat. Since this is not the case the pregnancy is either not as far along or, worst-case scenario, it is a blighted ovum. this is just a stational sac without an embryo in it. Unfortunately this pregnancy would end in a miscarriage. Another ultrasound in a weeks time will provide an answer. ...Read more

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What does it mean if I have high hCG level, 19106, and u/s showed gestational sac but no yolk sac or embryo?

What does it mean if I have high hCG level, 19106, and u/s showed gestational sac but no yolk sac or embryo?

Miscarriage: It means there is no embryo or fetus developing and will eventually become an apparent miscarriage. ...Read more

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I am 6w1d pregnant, im having bleeding, so they did an endovaginal ultrasound, I have a gestational sac, but no yolk sac or fetal pole, why?

I am 6w1d pregnant, im having bleeding, so they did an endovaginal ultrasound, I have a gestational sac, but no yolk sac or fetal pole, why?

It may be normal.: The delay in reaching the normal milestones we expect to see on ultrasound in early pregnancy are simply the result of a delayed ovulation, so that you are earlier than your dates suggest. On other occasions, it may be that the pregnancy is not doing well. Only time can really tell, because bleeding in pregnancy has little predictive value. On occasion, a blood test can be helpful. Time will tell. ...Read more

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I am 6w4d pregnant through day5 FET. On my first OB U/S, we could just see Gestational sac but no yolk sac or fetal pole, HCG is > 12000. What to do?

I am 6w4d pregnant through day5 FET. On my first OB U/S, we could just see Gestational sac but no yolk sac or fetal pole, HCG is > 12000. What to do?

Keep follow up: Most likely your doctor scheduled you for a follow up sonogram in about a week. That is a common approach. They may also want you to repeat the BHCG hormone. Confirm with the treating physician the plan of care so that everyone is on the same page ...Read more

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Does a large yolk sac mean a higher risk of miscarriage? Us today, only 5 weeks 4 days, doc said a little early to see hb. Said large sac could be bad

Does a large yolk sac mean a higher risk of miscarriage? Us today, only 5 weeks 4 days, doc said a little early to see hb. Said large sac could be bad

Good doctor: Sounds like you have a good doctor. I figure he/she will repeat the ultrasound in two weeks. By that time you will see a heart beat. Around 12 to 14 weeks your doctor will send you for first screening, an ultrasound and fingerprick test. This is a screening test for chromosomal abnormalities, which can be associated with an abnormally large yolk sac. ...Read more

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U/s at 6 wks 2 days showed yolk sac but no embryo and measurements of only 5.5 weeks. Used hcg trigger so exact dates- what are chances of viable baby?

U/s at 6 wks 2 days showed yolk sac but no embryo and measurements of only 5.5 weeks. Used hcg trigger so exact dates- what are chances of viable baby?

Expect heart beat: With accurate dating, the ultrasound technology available and a skilled monographer a crown lump length should be measurable and a fetal heart beat demonstrable. If a transvaginal ultrasound in a week still does not show an embryo with a heart beat, I would be concerned that this is a non viable pregnancy. ...Read more

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According to my LMP I am 6 weeks 6 days. Had an US done today and saw gestational sac and yolk sac however no baby. I have 30 days + cycles. Is it too early, could I be 5 weeks? Is the yolk sac also a good sign?

According to my LMP I am 6 weeks 6 days. Had an US done today and saw gestational sac and yolk sac however no baby. I have 30 days + cycles. Is it too early, could I be 5 weeks? Is the yolk sac also a good sign?

What was plan?: Usually in these cases the plan is to repeat the ultrasound in one week to see if a baby is visible with a heartbeat. You need to check with your doctor to determine what the next steps are ...Read more

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Is it normal to see only the gestational sac and yolk sac at a 5 week ultrasound?

What did your OB say: Your OB should ahve told you that was normal! You will need a followup us because you should be able to see a ht beat at approx 6 1/2 weeks. ...Read more

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Yolk sac no embryo. Did IUI and measured 5 w 1 d when I thought I was 6 w3 d. What's going on?

Yolk sac no embryo. Did IUI and measured 5 w 1 d when I thought I was 6 w3 d. What's going on?

Too early: Many factors can be to blame for this, a difficult ultrasound can blame, being tooearly can also show this. I would repeat the ultrasound in 2-4 weeks to re assess, sooner if you are having symptoms ...Read more

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I did an ultra sound at 5 weeks 1 day. Saw ges. Sac and yolk sac only. No embryo. Is this a bad sign?

I did an ultra sound at 5 weeks 1 day. Saw ges. Sac and yolk sac only. No embryo. Is this a bad sign?

5 week ultrasound: It's too early to say. There's too little information. Once the gestational sac size reaches 24 mm, we'll be able to say for sure if things are going well or not. Another way of checking is with beta-hcg blood levels every 48 hours. The numbers should rise by about 66% percent each 48 hours. ...Read more

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I had an ultrasound done, all she seen was a yolk sac and said it measured 5 weeks and 5 days. Is it normal not to see the fetal?

I had an ultrasound done, all she seen was a yolk sac and said it measured 5 weeks and 5 days. Is it normal not to see the fetal?

Good chance it's: Normal. A few days make a big difference at that gestational age. The more (or less) regular/certain your periods, the more difference it can make. At 5w5d most normal pregnancies will NOT have a heartbeat, but 2-4 days later will. Good wishes. ...Read more

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I had an early ultrasound at 5.5 weeks. A yolk sac was detected but not an embryo yet. What are the chances as embryo will develop?

I had an early ultrasound at 5.5 weeks. A yolk sac was detected but not an embryo yet. What are the chances as embryo will develop?

Very High: I would not be discouraged. That is still very early. The pregnancy changes a lot early in pregnancy. If you repeat next week hopefully you will see the pregnancy itself and the heart beat. A couple days can make a high different between 5 and 6 weeks! ...Read more

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Monday I went to the e.r a week after I found out I was 5-6 week pregnant. There is a yolk sac measures 6+1. no pole. JUST spotting now. Problem?

Monday I went to the e.r a week after I found out I was 5-6 week pregnant. There is a yolk sac measures 6+1. no pole. JUST spotting now. Problem?

Not sure: Hello Kathy286. Not sure. You should see your OB to have a follow up ultrasound and follow up blood pregnancy test. This is important to check the status of your pregnancy. Best wishes...Dr Jones Singer ...Read more

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HCG high for 5 weeks 3 days. What does this indicate? HCG level 22, 000. Ultrasound showed gestational and yolk sac.

HCG high for 5 weeks 3 days. What does this indicate? HCG level 22, 000. Ultrasound showed gestational and yolk sac.

Likely normal: HCG levels vary widely in normal pregnancies and 22000 after 5 weeks is likely in the normal range. See this site for more info.
http://americanpregnancy. Org/while-pregnant/hcg-levels/ ...Read more

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What does it mean of early intrauterine pregnancy 5 weks by gestational sac, yolk sac is. 3m no baby yet, normal? Is my baby show soon?

What does it mean of early intrauterine pregnancy 5 weks by gestational sac, yolk sac is. 3m no baby yet, normal? Is my baby show soon?

Fetal pole: 5 weeks is very early to see a fetal pole. Typically at 6 weeks you can see a fetal pole and at 6.5 - 7 weeks you can see a heartbeat by ultrasound. ...Read more

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7 weeks from LMP after clomid (clomiphene). Ultrasound today showed gest. Sac and yolk sac. Only measured 5 1/2 weeks. Not good is it?

7 weeks from LMP after clomid (clomiphene). Ultrasound today showed gest. Sac and yolk sac. Only measured 5 1/2 weeks. Not good is it?

Could be, wait: If your ovulation and conception on Clomid (clomiphene) was late, which it can often be, these findings may be okay. It all depends on when the ovulation happened. Hold on for the next ultrasound (s) and see how things progress. Bets of luck! ...Read more

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At what week is it considered a blighted ovum? My wife is 5 weeks and 5 days no feta. Pole. No yolk sac ps she had a tranvaginial us ultrasound

At what week is it considered a blighted ovum? My wife is 5 weeks and 5 days no feta. Pole. No yolk sac ps she had a tranvaginial us ultrasound

Varies: It depends on the size of the gestational sac. If it's very small, then there is a chance she's just earlier than 5 5/7 weeks. But if the mean (average) gestational sac diameter is measuring larger and there is no yolk sac or pole, it more likely is an anembryonic pregnancy (blighted ovum). Talk to your OB about the measurements and whether you are just very early in preg. ...Read more

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4.5 wks, bleeding & colic for 48 hrs, irregular contour of gest. Sac, no yolk sac, poor residual reaction, sac size. 5 cm, cervical polyp any hope?

4.5 wks, bleeding & colic for 48 hrs, irregular contour of gest. Sac, no yolk sac, poor residual reaction, sac size. 5 cm, cervical polyp any hope?

There's always hope: Sounds very serious but try to follow up with OB as it seems like you've been checked out. Whatever the outcome will be, don't loose hope. Rather try to focus on the good things that await you in the future. ...Read more