Hi everyone
DH and I have been TTC for 3 years now and this year we bit the bullet and went down the IVF route. Did our first cycle in Feb, got a BFP, saw heartbeat on the scan, all looking good. We were as happy as Larry. Then I had an MMC at 10 weeks and ended up having to have ERPC. Went from deliriously happy to horribly upset in seconds flat. 
It's safe to say my world fell apart at that point, had sleepless nights, nightmares, the works.
After that we said "right, let's do donor eggs" (we are both 41 so age is a factor) but after a bit I felt strong enough to have another shot with my own eggs while we waited for the donor eggs (it's a 9-12 month waiting list where we are being treated). This second cycle went much better than the first, they retreived 5 eggs (only got 2 first time around) and 3 of them fertilised. I had 2 put back at the beginning of September and got another BFP on the 27th.
Went for the first scan a couple of days ago and it showed the foetal pole but no visible heartbeat. The foetal pole measures 6 +5 and I'm 7 +5, so they said it was either a) small for dates and too small to see the heartbeat yet or b) it stopped growing about a week ago. I am so scared it's all going to go tits up again.
Got to go back on 28th for another scan. And poor DH is now out of the country on a business trip he couldn't get out of and won't be back until the morning of the 28th. He's on the plane right now. Bloody hell. It's going to be a long week.
Please come and tell me cheerful stories of how you had similar things happen but it all turned out ok in the end!!