What's lowering my estrogen levels?

I suspect that it's Saw Palmetto Extract (320mg). Is there anything else I'm taking that would cause my estrogen to tank?

- DHEA 1000mg

- DIM 300mg

- Pueraria Mirifica 1000mg

- TMG 750mg

- MSM 1500mg

- White Peony 515mg

- Shatavari 1000mg