TTC w/ CFS and low BBTs

Hi ladies,
I'm new to this forum and am hoping to hear some experiences. I have CFIDS (or CFS) and have been temping the last couple of months. My temps are quite low, although my thyroid tests are fine. I do realise subclinical hypothyroidism goes hand in hand with the adrenal insufficiency in CFIDS.

My question is, has anyone gotten pregnant with their temps in the 35.9-36 range FP and 36.2-36.3 range LP. And if so, what was your pregnancy bbt? Did it rise substantially?

I've been taking supplements and herbs to feed my thyroid but am still having a low bbt and am not even sure if I'm Oing by my charts, or if the rise is simply from the easing off of estrogen in the second part of my cycle. My cycles are only 19-23 days long and I O or at least try to quite early in the cycle, I think around day 8.
I'm currently taking vitex, epo, B6 and NPC (if I think I O'd) for TTC.
Right now I'm CD5 but was 36.25 this morning, 37.20 today. AF was unusual this cycle in that it was 1.5 days long and not 8 days, and bright red and not brown/dark red. That may be from RRL tea though.

Any insight or advice would be sooo appreciated :)