Every patient is different unfortunately. Yes you can conceive naturally though.
However I'd bring that up the next time with your consultant. Often what happens is the consultant will say you need to do it now if you ever want to convince etc.. They can tell by frequent blood tests when would be a good time !
I know many patients who have endo and have conceived naturally but the blocked tube makes it a lot more unlikely. I presume there's no way to unblock it for you becsuse they would have done it for you. And I presume the blockage was caused by endo and not previous issues like from a surgery?
IVF is the way to go ! And adoption
We have 2 adopted children in my extended family. Well 2 so far
Best of luck with it. Just take your time and don't worry it will all work out in the end
☆ Sorry for any spelling or grammar mistakes. Late day in work !