Sorry to hear that you are still trying. Keep on trying was a good thing as long as you had some hope of conceiving. Now as the doctors can’t even tell your problem of infertility. You should look for other options to have a baby now.
I was also trying from few years but had many complications. Although i conceived for 3 times but resulted in miscarriage everytime.
So i started looking for other methods of having a baby. And i came to know about surrogacy.
I contacted a clinic for surrogacy and soon i will get my dates of meeting with the clinic.
Good luck to you.