Anyone know how to open Fallopian tubes naturally?

Kimberly
Hello I have been trying to have another baby for 3 years now since I had a tubal in 2012. I only have left side tube and ovary now and just had dye test done today and found out that left tube in only open the size of a pinhole. One doctor said my only chance of pregnancy is invito and another said come see me when you're pregnant. So confused and depressed.