Failed Cycle with Donor Eggs

Hello,

I just went through a failed cycle with donor eggs. I can not believe that even with a donor egg I did not get preg. My questions is this - to those of you who did not get preg with donor eggs, what did you feel during your 2ww? I had some pretty good cramps and shooting pains in my ovary's for 6 days after transfer, seemed to start the min they did transfer. I am wondering if this is a sign of the egg being rejected by my body. I didn't have any of this with my own IVF's. It was a 6day transfer. And the donor was my 1/2 sister. Still waiting to have the after cycle consult with my doc. Just a bit confused at this point.
Thank You,