M.W.
Sorry K. ... I hear your frustration and wish I had an answer for you but I can say that one blocked fallopian tube shouldn't be a serious problem, at least from my personal experience. Years ago, I only had my right tube and ovary and was told I had only a 30% chance of conception and whowza, that 30% was more active than I'd wished.
I wish you not to get discouraged but to keep having fun trying. And hopefully, soon you will let us know about some deliriously good news. God's speed and blessings.