High beta = Singleton

iVillage Member
Registered: 05-23-2008
High beta = Singleton
Wed, 02-17-2010 - 2:11pm

Hi Ladies,

Need a little help, advice, past experience from ya'll. So here is the details...I had ER on 27 Jan, ET on 30 Jan. Transferred 3 embabies. Beta on 11 Feb (14dpo) = 536. 2nd Bet on 16 Feb (19dpo) = 7798. Everyone in the RE office, to include RE was convinced that I had more than one because of my huge number. So she scheduled me for my first u/s today. I am exactly 5 weeks today. There was only one sac. It measured 5 weeks 4 days. There were 3 people in the room and I think everyone was in shock that there was only one.She said that it must just be an over achiever (which I am fine with). I guess my question is...is it still possible to be pregnant with multiples? Is this to early to really see everything? Any input you have will be greating appreciated! Thank you so much!

DH 33 / ME 35 - TTC for


Avatar for mygoosebump
iVillage Member
Registered: 04-02-2003
Wed, 02-17-2010 - 2:26pm

Welcome and first and foremost sending lots of ~STICKY~VIBES~ your way!!

Yes it is possible that the other sac was missed, or that there is another baby hiding inside the existing sac. But it isn't super common for this to happen (twins are missed by early u/s about 5% of the time).

HcG numbers can be sky high for a singleton; Here is a site that breaks down beta numbers from high to low to median:



iVillage Member
Registered: 07-17-2008
Wed, 02-17-2010 - 4:01pm
Congratulations and lots of sticky vibes. Tina has already given you great information, I just wanted to welcome you to our board. :-)

elissa-1-1.jpg picture by elissalucas

iVillage Member
Registered: 11-27-2008
Mon, 02-22-2010 - 6:26am

When they did my first ultrasound, they saw two sacs but had a hard time finding the second baby. My ultrasound was at 6w3d. Yours was really early. I wouldn't be surprised if there was a second baby on your next ultrasound, but I wouldn't go in expecting one either. Don't forget that those early ultrasounds are not effective if you go in with a full bladder. The second baby remained difficult to see until we got to almost 12 weeks.

Congrats on your pg!




Mom to Katelyn, Aidan, Grace,