I had a baby on Jan 29 this year. Since his birth I've had 2 periods. One round the 15th of June. And one on the 25th of July. I haven't had one since. and I've taken 2 preg tests, both were negitive. I always had irregular periods before because of my pcos, but the doctor said after the baby they should return to normal. I am taking metformin for pcos...lipitor and lovaza...any clues why my body is sooo screwed up?