I Had A Private Pregnancy Scan Last Week Which Showed A Sac Of 7x5x6 Is This Growth Too Little

Posted on Mon, 25 Jan 2021

Medically reviewed by Ask A Doctor - 24x7 Medical Review Team

Mon, 25 Jan 2021 Answered on

Wed, 12 Mar 2025 Last reviewed on

Question : Hello, I had a private pregnancy scan last week which showed a sac of 7x5x6 and then a week later it was 11x6.9 - still just a sac.

Is this growth too little to be viable or is there still a chance?

Thanks!

Answered by Dr. Sameer Kumar (31 minutes later)

Brief Answer:
Early pregnancy

Detailed Answer:
Hello,
Thanks for the query, there is a definite growth in the gestational sac size which is likely without a foetal pole at present.
It is common to note that foetal pole arrives by 7th to 9th week of gestation ( counting from the last menstrual period). If the foetal pole doesn't arrive by 9th week, then the pregnancy is termed as anembryonic or chemical pregnancy and needs to be terminated.
So it is advisable to repeat the scan again after 2 weeks to check for viability of pregnancy.
Regards

Above answer was peer-reviewed by : Dr. Yogesh D

Follow up: Dr. Sameer Kumar (16 minutes later)

Thank you!

Is there a chance the pregnancy is still viable?

I haven't had periods for a few months so unsure of dates. I should be around 6-7 weeks.

Answered by Dr. Sameer Kumar (1 hour later)

Brief Answer:
Early pregnancy

Detailed Answer:
Hello,
When was your last menstrual period?
Pleass attch your latest ultrasound for opinion.
The size of the sac doesnt really matter , its the period of gestation.
Regards

Above answer was peer-reviewed by : Dr. Prasad

Follow up: Dr. Sameer Kumar (1 hour later)

Hello,

I have uploaded the scan picture they gave me!

I had a period on the 5th of September last as I do not get them on contraception.

So I would say my period is between 5th-10th possibly but they can last long also! The last one would have been average 7th December!

Thank you!

Answered by Dr. Sameer Kumar (2 hours later)

Brief Answer:
early pregnancy

Detailed Answer:
Hello,
i have gone through the scan and it confirms an intrauterine gestational sac. Considering that your LMP was 7th december, you would be 7 weeks gestation as on date , so you can actually wait for another 2 weeks to check for foetal pole to arrive and foetal heart beat to be seen.
So repeat the scan again after 2 weeks to confirm viability of foetus.
Regards

Above answer was peer-reviewed by : Dr. Prasad