[littlehouse36]

This issue with contraceptives is that the hormones are synthetic. The synthetic version of oesterone is “ethinyl oestradiol” and has been found in male river fish to wreak havoc his (ahem) male-ness.

Likewise, the synthetic version of progesterone is called progestin and is a major player in breast cancer.

[DBrow]

"Concentrations of 17α-estradiol and the contraceptive 17α-ethinylestradiol were in most of these samples below the limit of detection." From my post above. NOT found in sewer plant discharges, limit of detection quite low.