There are many options for oral contraception currently out on the market and most are a combination of synthetic estrogen and progestin, with only a few progestin-only pills available for use. The woman’s body only uses a small portion of the hormone and the majority is excreted, where it goes to a waste treatment facility to undergo an ineffective process that only removes a portion of the hormones from sewage. The rest is left to be released out into the environment.