Hello again Boodle. I'm really sorry you've had such a crappy year. Life does like to kick us when we're down sometimes, doesn't it!
We have lots in common other than our one-tubedness - I'm also 31. And it was my left tube that was removed, too!
I had found out I was pregnant 2 weeks before, and had very small amounts of bleeding. I wasn't too concerned, though, as I had the same when I was pregnant with DD. But, I got an early scan just in case and like you I saw the healthy heart beat, thought everything must be fine until the sonographer said quietly "it's ectopic".
This was on 23rd October, and I had to stay in hospital to have surgery that afternoon. DH was working at a new job, so couldn't come to the hospital until after 6pm - by which time I'd had the op. Luckily, I had no threat of rupture - that must have been scary for you both! In fact, I had no pain at all before surgery. The nurses kept asking, and didn't believe I was in no pain.
I have also had a MMC, many years ago (before meeting DH) and found that really devastating. I'm not saying this wasn't, but I think because there was serious surgery to recover from, and the risk of death if I hadn't gone for the scan my emotions are different this time.
I do find myself thinking how cruel it is that for the sake of a few mm everything would have been different - but trying to look to the future instead of dwelling on the past.
I don't really know about any of the TTC stuff, as I got pregnant with DD at the first attempt. I'll give it a few months of trying before I start worrying too much.
Wishing you luck this cycle - I have my fingers crossed for you!