When is enough, enough?

Been TCC for over 2 years. I’m 27 and have unexplained infertility. I’m considering going back on birth control to help my horrible periods but I feel like I’m giving up if I do that. And I feel like going back in bc would mean that my surgery and fertility treatments would be for nothing. Feeling so defeated and don’t know how much longer I can put myself through this pain 😥