Hi Deb,
Not sure about your question regarding LP (although I think it can vary a bit from month to month contrary to popular belief) but just wanted to pop in to say hi. I am very sorry to hear of your recent loss. It must be extra tough when it happens multiple times with no known reason. Let's hope that it's behind you now and you can move forward with a healthy pregnancy.
Things have been not so great for me in terms of TTC. I have had to get assistance as I am not ovulating. Currently waiting for my AF to show so then I will start clomid . If it does not arrive soon I will have to take another medication (provera) to induce a bleed so start my cycle again. Very frustrating as I was hoping for things to be a little more straight forward without having to rely on medication (seems so unnatural). At least I know why I was having so much difficulty with those rotten OPK's. Anyway, if I wasn't TTC, life fantastic apart from that!!

Good to have your advice back on board BTW.