Is it worth it?

My ovulation is a whole 2 days. After my period. I have asked before and I'm being told to get hormone levels tested, I got them done they are "fine" I had one baby 6 years ago- I love her dearly and she is disabled nothing genetic though!! I just don't think that my fertile window should be so tiny. I don't understand and it breaks my heart that I literally have nothing left in me to even care anymore--- so sad.