Thanks, everyone, for being so supportive about egg sharing! My mum is a bit unsure, but I think MrGH and I are going to go for it.
Bluemoonday, DON'T GIVE IN!!!! My mum was the opposite (she likes rules), but just tell her it won't be accurate until you reach the test date. I'm at a conference this weekend, but I'll have all my fingers and toes crossed for you. Are you still feeling like it's not going to happen? I've no idea what the average wait for AF is, but as I've been documenting mine has definitely not started yet in any way that I would recognise as 'normal'. Nonetheless, statistics demand someone gets it right the first time! I hope it's you!
Happily, our test date was on 2 June. I'm still debating whether I should test again -- no real period has started yet, and I've had enormous butterflies in my stomach for the last couple of days. It'll be a blinking miracle if it shows positive, but I can't understand why I'm not bleeding properly. The ACU said that it'll be really heavy and revolting (paraphrasing), but thus far it is completely abnormal insofar as it's light and intermittent (mine are usually heavy and revolting).
Shellster, I'm so sorry you cancelled the cycle. It's so hard to go through -- the the jabbing and poking, and the endless waves of emotion. I've got a good feeling about the next cycle, though. Fingers crossed.
Purplemegs, I really don't know. It's really tough to know if any of this is right. Regarding your son, if you guys don't get pregnant, he'll never know what he's missing, but one day he'll be grateful that you tried so hard. If you do, it will be tough for a few months, but then he'll have a little brother or sister who will adore him, and as they get older, a partner in crime, a conspirator, an amazing friend. Whatever happens will end up being right for your family. ('Sandbags around my heart' -- best description EVER. For months, if not years, yes.)