Ann - I am so sorry about your BFN and that you even have to be having this internal debate.
Interestingly, it is exactly the circumstance I found myself in. I essentially went to Wazza for one last crack at the whip, mainly for my own internal struggle and to know that I had thrown everything at it. The only thing I didn't do was take the Saizan, mainly due to cost. That said, I know 4 people who have had remarkable success with it. So maybe that's worth considering.
The thing about Wazza is that he will give it to you straight and will give you a percentage chance and let you make up your own mind.
Good luck with your decision. Much love xxx