I wouldnt go by anything they do in the States - when i once asked FS how something as ridiculous as "Octo-mum" could possibly happen, he said its because they are so unregulated, that so many dodgy practices go on.

I have no IUI experience, but with our IVF, FS would only put back 1 blasty. On our last cycle (which was cancelled due to natural BFP) i had convinced him that we should have 2 but he only agreed due to the fact i just turned 40 and time was running out. I think we would have signed a waiver for him to do that, and i would have been petrified of twins - not just being able to cope when they were born, but also the risks associated with carrying them.

Good luck.j.