Tubal reversal?

Sherry
I am 31 years old as my husband is as well. I have three children from a previous marriage and he has 1 child from a previous. We do not have kids together but one like something terrible. After I had my youngest (8.5 years ago) I had my tubes cut, tied and burned. My husband and I were talking about saving the money to do a reversal but we also know it's not 100%. 
Any suggestions or advice for us? Has anyone else had this done and had a successful pregnancy? If so, how long did it take and were there other procedures involved to help? 
Thanks in advance.