"you body does take time to adjust to it. the first time i took it, i had it for 6-7 months and felt nauseous right after taking it and would get horrible headaches. i forgot to refill the prescription so i was back on it a month later. and three months after that i&#039;m still experiencing nausea and headaches, but now i have light spotting a couple days before my period, and it doesn&#039;t start until 1-3 days after the sugar pills. the only upside, is no pregnancy and it&#039;s cheap!"