@Littlepoppet1 yes I use them!
I’ve actually used them on and off for about 6 months.
When I don’t take them I ovulated on cd22 and then my cycle ends up being 35 days long.
When I do take them it brings my ovulation earlier quite significantly.
I have in the past taken them on cd3-7, which supposedly may bring ovulation forward slightly, while also ensuring the eggs are mature enough. Taking it on these days I’ve brought ovulation forward to cd14, 15, and 16.
This current cycle I took them on days 2-6. I ovulated on cd14, so with my 13 day luteal phase my cycle will be 27 days long!
I’ve had a couple of bfp’s on cycles where I’ve taken soy, but unfortunately mc - had 4 mc in total and not all while taking soy so in no way think it’s related.
So from my own personal experience, in shortening my cycle length it’s worked great!