I went on to conceive naturally - there is always hope! We'd been under the FS and had all sorts of tests done, with the HSG being my last when I was told that if in 6 months time we hadn't conceived then we would be put on the IVF waiting list. After having the HSG this gave me a right confidence boost 'cos it's hard, as you're no doubt aware, how difficult it is to keep positive about ttc. But it did just happen, I hate to admit but those drs are right, we've just fallen into those that take up to 2 years to conceive.
I hope you get your bfps soon I really do. I do believe though that the waiting has made me so grateful and appreciative though. FX for you guys.