Hi and I also have PCOS, but I do not have a LPD. I know it sucks finding a problem, but it can work in your favour, knowledge is power. I really hope this gets sorted for you quickly and you can get your BFP. Has your GP considered Metaformin? What about chasteberry (natural herb)?
I take Vitex (chasteberry) and I also visited a naturopath a few weeks ago and got given a whole heap of herbs/ vitamins that seem to be helping. He doesnt think metaformin will help because I dont have insulin resistance. I basically have nothing in PCOS except the "beads" on my ovaries. I had my hormones checked a week ago and they were spot on. I guess the cd21 BT will give a better insight to see if there is a problem with my progesterone levels. I do that on Saturday...im cd19 or 3dpo today.

Thanks for your support