Sad that it seems insurmountable

I am suddenly and inexplicably sad that the prospect of getting pregnant seems insurmountable. There seem to be so many variables, and if it hasn't happened quickly and naturally (as we would all prefer) then where do you even start? Of the myriad things that could be "wrong" how do you know what to tackle first? If weight and health are an issue, then how do you deal with the length of time to correct it?

Feeling discouraged and overwhelmed at the apparent difficulty of the process. Months ago when I started this journey I thought it would be easier. I thought I'd be able to pride myself on my body functioning well and like it "should". Since that hasn't happened I am fearful and disappointed in my body, feeling it must be broken.