Since you have had a negative test for pregnancy
, it is unlikely that you could have made an error as you performed the test during the right time, presuming that you have regular 28-30 day cycles. The symptoms you have at present suggest pelvic congestion and an impending period. Usually, withdrawal bleeding occurs 3-7 days after completion of hormone treatment. The occurrence of the discharge is perhaps a premenstrual one. Please see your consultant for further help. Wish you good health.