Thanks for asking at Healthcare Magic. I read your question and I understand your concern. Daphne pills containing just progesterone are notorious for Menstrual abnormalities, like menorrghia, delayed menses but these side effects vanishes in few weeks after stoppage of pill. I would like to suggest you to have a pregnancy test as one month pregnancy can t be felt. If it s negative then definitely it s drug side effect. Your menses can be recur if you use two tablets, one on alternate of high dose of levonorgestrel and estrogen. Use alternate methods like barrier methods, IUCD for contraception. Hope it helps best. Take Your best care. Don t forget to rate this answer and to close the discussion at Healthcare Magic. Regards Dr Ejaz