It really is hard. Most couples take on average about 6 months, so that's normal.
Then there's the few of us that take forever. I ttc'd with my ex-husband for 2 years, with 1 pregnancy that ended in miscarriage. (we divorced)
With my husband now, Andrew (

) I thought I had turned into one of those girls that I always hated - that got pregnant SO EASILY with NO complications (out of about 3 months that we have been irresponsible in our relationship, I got pregnant 2 of them!) but then I had another miscarriage. So I guess I haven't turned into one of those girls after all.
I really hope you get a bfp soon. ttc is a hard game when you have problems and infertility issues, I feel for you