P.M.
I second the info about taking it with Blessed Thistle. For many women it works fine alone, but when the two compounds are used together it causes both to work much better than they would have alone.
I'm not sure if fenugreek may cause stomach aches, but truly - anything can have a side effect. Check out www.kellymom.com about fenugreek, she usually has really great up to date info on her site!
To help with supply, be sure to keep hydrated and maybe add oatmeal to your day.