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What Does Gestational Sac Measuring 5.3mm X 10.8mm X 5.9mm Indicate?

Posted on Thu, 10 Dec 2015

Question: Hi!

My LMP was 2 October 2015.

We had intercourse just once on 16 October (cycle day 16). I had distinct ovulation pain on days 16 and 17.

I got a faint positive pregnancy test on 31st October.

I went for an early transactional scan yesterday at what I thought was 6 weeks 3 days and all we saw was an empty gestational sac measuring 5.3mm X 10.8mm X 5.9mm Mean sac diameter 7.3mm. There wasn't even a yolk sac.

Could I still be within a chance of seeing something at my rescan considering we only had intercourse once and the timing of my positive pregnancy test?

My hospital have told me they won't be doing hug levels.

Answered by Dr. Vjollce Mbiarra (48 minutes later)

Brief Answer:
You should wait for another scan because you have chances for a viable preg

Detailed Answer:
Hi dear and thanks for trusting to us .

I understand your concern but please be calm until your next scan ,because you have chances for a viable pregnancy.

First I should know method of scan.
It was tranabdominal or transvaginal ?!

Because transvaginal scan is more precise than transabdominal scan.

On transvaginal scan on a mean sac of 8 mm we can see a yolk sac ,hence while your mean gestational sac is 7.3 mm ,your pregnancy age is smaller than we can calculate from your last periods.

Take folic acid 400 micro gram per day ,until your pregnancy will be 12 weeks .

All the best and good motherhood

Above answer was peer-reviewed by : Dr. Prasad

Follow up: Dr. Vjollce Mbiarra (14 minutes later)

Thank you! It was a vaginal scan. It was a private scan i paid for but they reffered me to my local hospital who want to scan me for themselves today. Is it likely 24 hours will show any difference?

Answered by Dr. Vjollce Mbiarra (22 minutes later)

Brief Answer:
IS VERY EARLY FOR THE NEXT SCAN

Detailed Answer:
Hi dear again!

In fact is very early to see changes on one pregnancy ,because MSD (mean sac diameter) increases only by 1 mm per day.

If you where my patient I would recommended you two alternatives ;
one -to wait for one week for another ultrasound scan
second -to do for tow days in a row Bhcg blood test to see if it increase or not .

ALL THE BEST

Above answer was peer-reviewed by : Dr. Prasad

Follow up: Dr. Vjollce Mbiarra (9 hours later)

Hi again!
Ive just had my first beta results, its at 3,300. They will retest again and itll be around 65 hours, what level should i expect by then roughly?

Answered by Dr. Vjollce Mbiarra (2 hours later)

Brief Answer:
It doubles after two to three days

Detailed Answer:
Hi dear and thanks for your query.
Bhcg level is very good and appropriate for your pregnancy age.
After 62 hours levels of Bhcg doubles.
Hope for good results and be calm.

All the best

Note: Revert back with your gynae reports to get a clear medical analysis by our expert Gynecologic Oncologist. Click here.

Above answer was peer-reviewed by : Dr. Vinay Bhardwaj