Yolk and Sac

Behold the sesame seed, magnified for your viewing ease. 

The yolk is the dark smudge in the middle of the white blob (it kind of looks like a bagel or doughnut.)  My uterus is the shadowy darker sphere above the smoky white bits, the edge of which is about halfway up the image.  The yolk will start to resemble a humanoid at some point in the next week or two once the spinal cord and brain form.  Then we'll get to see the classic tadpole stage by 7 weeks.  Right now, it's basically amniotic fluid that will show us a heartbeat or a "flicker" by next Tuesday.  The egg white part becomes placenta, which is the site of implantation.  Cool stuff!

As of Monday morning, only one sac and yolk was visible.  This surprised even Dr. Hock who commented that she was sure there'd be two considering my numbers.  This isn't, however, the final word on the matter.  Some women have latent sacs that don't become visible until a week or two later.  It's ain't over till we're sure there's only one baby in there. 

I can't say I'm disappointed, really, but I will say I was surprised.  The three of us in that room were surprised, given my early symptoms and sky-high betas.  But that's Darwinism for you, I guess.  I'd rather lose one now before even really knowing it existed rather than later.  Better to have one extremely healthy baby than two competing for limited space.  Plus, shopping for two of everything might give a certain someone an aneurism at the checkout. 

For the moment, this pumpkin is still due October 13.