Mel - Just wanted to say Good luck at the OB tommorrow, I really hope you can get some answers. Also, just on the stress free environment, with both of my pregnancies, I fell pregnant while on holidays, when I was relaxed, so I really think it is true. I have always thought that I got UTD because I wasn't worried about stuff and was just relaxing and enjoying myself. I think with everything that you have been through in the last few months, your body and soul need this time out from the stress at work, and I bet you you will get that BFP very soon.
Lotsa to you!