Am I still ovulating? That's the big question. I only had one period in March 2015, one in Dec 2015 and one in Oct 2016. All my hormone blood tests (I know they are unreliable as a diagnostic tool for this BUT I have had three per year which is a good starting point for analysis) show very low levels (some undetected by highly sensitive tests) of all sex hormones, so my gp, gynae and I agreed that HRT was needed. I haven't had any symptoms of ovulation during this whole time (only before the Oct 2016 bleeding, but then I had already started HRT).
Post-menopausal women still produce endogenous oestrogen, progesterone and testosterone from adrenal glands, which is precisely where my problem lies, I'm perimenopausal BUT my adrenals are not coping well with stress, age or whatever other cause, that's probably why my progesterone, oestrogen, testosterone and DHEA levels are so low and cortisol is not showing its normal circadian peak values.