TTC #2

So, me & OH started ttc #2 over 2yrs ago as far nothing, I'll be honest it's kinda stressing me out due to the point that I feel we're never going to have another baby, everytime I feel we're in for a chance he puts me down about it saying that I'm not pregnant, I just don't know what to do any more, everyone I speak to about it tells me not to think about it & I've come to point now where I'm giving up on the whole idea of having another baby. Please anyone with any advice would be helpful. Sorry for the long post too.