has anyone gone thrue a similar situation??

so here we go i been with my boyfriend for almost 6 years and we a more than ready to have a baby in our lifes. problem is it seems i cant get pregnant. i been in treatment for 1 year i had 4 insiminations done all total fail i done everything my doctor says and taken everything he has given me.  i asked him the reasons why i cant get pregnant and he said because i have my tubes swollen plus a cyst that makes my periods irregular and throws my ovulation way off. i been tracking when i ovulate and have sex everytime the doctor recomends they also keep track of my ovulation. after all this i done my doctors told me is not impossible for me to get prego but at this point i have given up all hope. please any advice!!