I've tried tons of "natural" things to help me concieve, though none have done the trick for me, I'll share.
Take a 100 B complex and/or 100 mg of B6 daily
Take an Omega 3 suppliment- fish oil
Take Vitex- its an herb thats supposed to work like clomid- but it takes a few months to be effective- take it 3x/day
I've also drunk pre-conception and pregnancy teas for red raspberry leaf, and alfalfa they have them at
www.herblore.com and
www.snowboardmommy.com
I've also heard of taking Soy Isoflavins to increse your estrogen in the first part of your cycle. Though I haven't tried this one- yet.
Good luck
Laura