Renee, oh, that sucks that they cancelled! I often find I O a week late after an IVF cycle, so CD20 seems a bit early to cancel, but I guess they know something I don't... When I did my natural FET I was offered clomid to help me O in a timely fashion. That may be an option to consider for any future cycles?

melttc, those all sounds like completely normal thoughts and frustrations to me! But I'd have to say that I don't find I get used to the disappointments - sometimes they seem harder than ever these days... I think all you can do is ask your DH to make a few changes to optimise his sperm quality (back it up with a bit of research printed out if needs be), but remember you can't force him to do anything - he's an adult and has to make his own decisions... It is both egg and sperm quality that determines embryo quality, so you both contribute. There's a theory that egg quality determines how the embryo does up to day 3 and then sperm quality takes over after that, but not everyone seems to support that theory. And, for me, changing FS this year was the best thing we've done in a long time! We've gone from unexplained to having a reason. I wish we'd changed sooner! I asked our old FS about endo at our first ever appointment back in Feb 2008 and twice more within the next year and he just dismissed it out of hand.