Pregnenolone is an upstream hormone. Generally it will flow down to cortisol but can go down the sex hormones sides like dhea then further into testosterone and estrogen. The cortisol side can also increase progesterone and aldosterone. Where preg goes and how much can vary between different people. Only real way to know I'd to test after several weeks of adding a supp? ?
Generally I have found it helps increase cortisol. Strange thing for me was it increase total testosterone but no effect on dhea, sometimes things don't pan out the way the text books say.