Will insurance companies pay for tubal reversal?

It depends on the policy and what was specifically covered in the terms of the contract, but generally, most policies will not cover a tubal reversal. The tubal was, in the first place, a deliberate action in an effort to prevent a medical condition; yes, pregnancy is a medical condition. By the standards of most insurance companies, it will be effectively impossible to get them to cover reversal of a tubal ligation.

The main issue in determining coverage is whether the procedure is "medically necessary". If it is, according to a physician, there is a better chance of coverage than if it is elective.