Thanks for your query. There is no relation between tubal block
and obesity. Tubal blockage could be due to adhesions because of pelvic inflammatory disease
or previous surgeries. For RECANALIZATION you should undergo surgery. Laparoscopic recanalization could be risky because of your weight. All the best. Hope you get pregnant fast.
I hope this information has been both informative and helpful for you. In case of any doubt, I will be available for follow ups.
Wish you good health.