Time length ttc?

How long has every one been ttc?

I tried the first time at 21 yrs old, married graduated college,etc so thought i try but we did for 5 yrs, then adopted, no pregnancies obviously. Now my SO and I have been without birth control for 3 yrs and no pregnancies. Dr's have always said my ex husband ( when I was married) and I were perfect, sperm count, my tubes, etc etc. Fertility procedures and all didn't work, weird I know. But here I am again with 6 yr old son at 31 and am crazy to want to do try again but in a total of 8 yrs of no birth control and no pregnancies I think I will be ttc for a long time again lol