Hi Michelle and Pixiesmom
Michelle, I agree with Pixiesmom, that one important aspect of choosing a donor is that she have a reliable track record - responds well to stimulation and has achieved other pregnancies. I know now, after three attempts, how a donor can vary. For instance, the number and quality of eggs can vary per donor. One aspect, if you were to use a donor that produced a small number of eggs and the quality of those eggs were not the best, is that the likelyhood of you achieving blastocysts for transfer will be slim. Another aspect is if you only retrieve a small number of eggs then it is probable that the embryologist will not attempt to go to blastocyst stage as there could be the risk of losing all embryos leaving you with nothing to transfer. And further, if you have any problems with sperm, fertilisation, division etc. then having a small number of eggs and poor quality of eggs to work with, may be a problem. If you at least have some idea of what the donor has experienced in the past then you can make an informed decision as to the road you are willing to take. I know I would not pay to use an unknown donor, to costly and too stressful.
We decided that age was not on our side, me 41 at the time. The quality of my eggs was not good so after three tries with my own eggs, we decided to go with donor eggs as we felt that this would give us a much better chance to achieve our dreams. At 41 the chances of successs are very low and then on top of that the chances of miscarriage are high - I felt it was all stacked against us. That is not to say some that people are not successful in acheiving a pregnancy over the age of 41 - it is just there is so FEW of them. However, in choosing to go with a donor, our success has not been guaranteed. We feel that we still have a few more tries to go so will persist as long as our mental capacity to deal with the stress does not engulf us and the money does not dry up

.
The IVF rollercoaster is such a slippery track, whether you use your own eggs or that of a donor. I think we are all very brave to proceed, whichever way we choose to go.
Good luck to all and keep that sanity.
Di