As someone with a failed tubal ligation reversal, completely blocked tubes and an IVF baby, conceived after many cycles, I would suggest that you get your gp to refer you to a gyneacologist first and foremost. I would explore your options to try to unblock your tubers prior to IVF, as if you are able to have a successful operation to unblock your tubes, it means not only that you will not need IVF to concieve the first time, but you'll not need it for each and every subsequent child you hope to have. It may seen like an easier option to go straight to IVF, but if you wish to have more than one child, it is an expensive and difficult road to follow.

If your tubes are blocked anyway, I can't see how trying to unblock them is going to hurt - it can only help. Good luck either way.