Natural (ish) cycle for next FET

Had my WTF appointment Thursday. Mr Dr shrugged shoulders, said he can not think of other drugs to try. One thing that could be a problem is my lining getting too thick and could be getting hyperplasia. The plan for my last embryo and last FET is a natural (ish)cycle with no suppression, no oestrogen tablets, just prednisolone, intralipids and PIO. I am to pee on a stick, call when I have a LH surge and have a scan. If my lining is thick enough I shall have a transfer. If not thick enough, my embryo will not be thawed and we will do a medicated cycle at a later date. I shall also be doing accupuncture. A couple of my friends from my clinic have given me a number of a accupuncture guy who specialises in fertility issues. Both of them fell pregnant when doing IVF and having accupuncture with him. Fingers crossed he will help me! It's worth a try, not got anything to lose, other than money!!