aflight84, I think you should do what ever you feel is right.
Oh gosh is that a cliche or what!
Unfortunatley none of us are experts and when we do get to spend time with one it is very limited and we don't get to ask all these questions we need answers to.
It would be my guess, and it is just a guess that not all seven will ovulate, when you think about how hard it has been just to get you to ovulate in the first place and the chance that all of those that do ovulate will get fertilised is also not 100%, I think you should give it your best shot.
As for them getting stuck in the tubes because they are big, from what I understand the egg is inside the follicle so the egg itself is probably no bigger than a normal healthy mature egg so I wouldn't think it would get stuck in the tube, but I am just guessing.
We are both on CD14 and I have my extra large follicle that could potentially ovulate so I have my FX that if it does get fertilized it won't get stuck because we are baby dancing like rabbits, and hoping for a miracle.