Can you use natural hormones as a contraceptives?

Only if: you don't have intercourse. Don't waste your money.

Wanna get pregnant?: Hi. Sure, go ahead. Use "natural hormones", but be prepared for pregnancy. If you want to prevent pregnancy, however, you might want to stick with an estrogen/progestin combo that prevents pregnancy! Go for whatever makes your "natural" needs fulfilled and when that belly bulges... Thank goodness what you took was "natural"!