alternatives would be any OTC anti-estrogen.
keep in mind these are not nearly as beneficial as a selective estrogen receptor modulator (e.g. clomid).
in fact most people wouldn't take the time to respond to this because even though its better than nothing its probably only about 25% as effective as a selective estrogen receptor modulator.
dermacrine & dermacrine sustain would be two examples of natural anti-estrogens that are sponsored by this board, you can find them at
www.primordialperformance.com