Common symptoms of low progesterone are heavy periods, clotting with your periods, menstrual cramps, endometriosis, ovarian cysts, uterine fibroids, and fibrocystic breasts, mood swings before your cycle, premenstrual headaches, bloating, infertility, osteopenia/osteoporosis, low libido
and premenstrual breast tenderness. You have symptoms of low
progesterone. It is likely that your low levels of progesterone or "estrogen dominance" lead to your breast cancer.