I've been taking medroxyprogesterone 10 mg for 10 days of the month. I've been on it for about 4 months for irregular periods. it's been working great, I've been getting my period 2-3 days after the last pill and they last 6-7 days. I took it this month and my period is not on 3 days late. my doctors think that i have PCOS but i haven't been diagnosed. when i had an ultrasound everything was fine and i have no cyst. I'm just wondering if i could be pregnant, or am i back to square one with the irregular periods.View Thread