Regretting having my tubes tied

Michelle
I posted this somewhere else but didn't find but one person that has went through the same thing. I am 28 ( almost 29 ) and have 2 girls, 7 and 9 ( nearly 10 ). I was going through a divorce and a very hard situation during my second pregnancy. Without researching or anything else, with the persuasion of my grandmother, I decided to have a tubal. A little over 7 years later and I'm remarried and happy...and broken. He's 27 and has 3 children that aren't living. A boy and a set of twin girls that died from being born prematurely. We plan on having a tubal reversal in March but I'm scared of possibly complications and the possibility of scarring leading to my tubes being blocked. It's depressing really :-\