Hi Traylee, soy is one of those things like celentro, you love it or hate it! I hate it, most soy is GMO and Round-Up sprayed. Modified soy mimicks estrogen (which is why women feel they can take it and wind up pregnant). For me, I have too much estrogen and not enough progesterone (I've had the doctors measure my hormones for months to see what the heck was going on). Estrogen dominance is a terrible state, it's a premenaupausal sort of thing. Google it, not fun. Estrogen alone isn't proven to make you ovulate better. This is done by using Chlomid or gonadotropins IMO.
Have you asked for a cd3 fsh, cd21 progesterone and estrodial test to see what's going on in your body? What about using an ovulation monitor? It helped me understand months when I barely o'd vs months where I had strong responses. I had strong O responses while taking vitex and DHEA and while I was using softcups I actually got a bfp. That could be a fluke as there was less than 5% chance of me being able to get pregnant with my diagnosis on my own so I don't want to chalk it up to softcups or vitex per say but by getting some tests you'll at least have an understanding of what's going on. My DHEAS was also really low, non-existent! I was taking DHEA since may and wound up preggers in Sept. My fs thought that this made a difference. I'm still a sceptic at the whole thing. It's a crap shoot afterall!
I wish you a speedy bfp!!