Losing hope

Angela • 32 years old, ttc #1 for 37 cycles. We are in the middle of our IVF treatment. We have 3 frozen embryos! ET is August 15
Do you ever wonder if you CAN get pregnant? I've been trying for 18months and never have had anything happen. I ovulate and have my period but that's all that happens. I have open tubes, everything looks fine. What if it just won't happen?!