If you are being diagnosed with a blighted ovum just based on your hCG levels and no baby being seen, your doctor is wrong.
Let me repeat...
Your doctor is wrong!
If your doctor has not been telling you the size of your gestational sac, you need to ask.
Going to repeat again...
Blighted Ovum scare? Ask the size of your gestational sac at each appointment.
If this is a blighted ovum scare, you don't need ultrasounds every two to three days. This is self-defeating. It'll leave you worried. Gestational sacs need time to grow. They don't grow much in two to three days. If your pregnancy is indeed viable, your baby needs time to grow and be seen. Give it a week.
You can wait longer but, really, the waiting is torture, a week is fine. Please, keep in mind, I had to go almost a month before finding a baby in my gestational sac and the sac measured 28.5mm. At only 21.5 mm, it still looked empty.
I know you are worried but if there are no serious complications (i.e. threat of ectopic, infection, etc...) make sure your ultrasounds are scheduled one week apart.
Also, so important, once that gestational sac is seen, hCG levels do NOT need to be taken. They can rise, plateau or drop and this can still be a viable pregnancy. I have talked to women whose hCG levels were over 100,000 before they found their babies. I've talked to women whose hCG numbers seemed to plateau around 30,000 to 40,000 and then went on to find their babies.
So what should the size of the gestational sac be before a blighted ovum is suggested?
I love the UK's new guidelines. I oft repeat them because these guidelines would do away with the majority of misdiagnosed miscarriages.
The gestational sac should measure at least 25mm before a blighted ovum diagnosis is even suggested.
Want to know more about these guidelines? I blogged on this last year:
Misdiagnosed Miscarriage? The UK Has Changed their Guidelines. Your Doctor Needs to Take Note
If you are in a pregnancy forum here online, share this page! Yes, some women will miscarry but you may prevent somebody from ending their pregnancy while there still might be a viable pregnancy.
The take away from this blog post. If you have seen the gestational sac, stop focusing on the hCG levels. Focus on the growth of the gestational sac
- and -
just to throw another wrench into the works...
And, Even More on the Unreliability of Ultrasound Measurements During the First Trimester
Your ultrasound tech may get a different measurement than another ultrasound tech. For absolute certainty, if there are no complications, you may want to wait one week after the gestational sac reaches 25mm to verify the empty sac.
Yes, a blighted ovum diagnosis is one of the most miserable diagnoses you will ever receive. The waiting is torture but a number of women have waited it out and found their babies.