advice needed...

Well if you were with me or read my journals this past summer I was scheduled to have my first IVF through a infertility trial study. Well, it was canceled due to my prolactin levels being too high. I had to take medication, MRI, and monitoring to get it normal. I just finished and I now want to try again. The thing is I KNOW IN MY HEART that my tubes are blocked. Almost 2 years ago, I had the LAPO. surgery to go in and see whats up. Well, my doc said tubes were now open try for 3 months if not pregnant the tubes can close up again. Well, here I am 2 years later and no baby. So do I pay over 400.oo freaking dollars to check my tubes or precede with finding a way to go straight to IVF. I am so tired of paying money and getting no baby. I really feel as though thats why I am not getting pregnant or do I pay for another HSG to see for sure if they are closed??? I don't know.....help..