Thank you to those who replied...

I finally got the courage to speak to an embryologist about this. He spoke with some colleagues, and they've confirmed that this cannot be my sister's baby, and that this little bundle of joy belongs to dh and me!

Of course, my sister doesn't know yet that we're ...

This is probably the oddest question, so I"ll give some background first.

FET Oct. 5/05. Negative Beta on Oct 19th. Period came on Oct 21, and was pretty much like a normal period. (This was the third and final time we had transferred, I was trying to carry sister's babies).

Well, since we had ...