Gee, Starfish, I wish I could offer some real words of wisdom for you, but ultimately it needs to be your decision. I guess at the end of the day, I'm prepared to just do whatever it takes to get me a bub sooner rather than later. I must say though overall, I feel like you've been unlucky with your IVF attempts, and there's hope for your eggs yet if you can still manage to get a natural BFP! Add to that, I remember Dr S says that you WILL get pregnant... I thought the PGD idea was a good one, it's just that this cycle hasn't been easy for you... but the next would almost definitely be better?
On the other hand, what a dream chance to have a sister willing to help you out! I'm positive you'd love the child every bit as much as your own biological child - it's just the long term 'telling' of the child that I dread the most. I think I've said to you before - Aussie Egg donors are a really helpful bunch of girls and there's lots of support around all aspects of having a donor and parenting a donor conceived child...
Anyhow, this cycle is NOT yet over!! There's life yet in your lining and womanly bits
Pinky and Slinky - good luck tomorrow girls