I have taken several different types of pills, the progestin in the pill is the culprit for the side effects you described. I have the exact same ones. vaginal dryness, irritation and depression on Mircette, Lo-ovral. I have recently switched to Ovcon 35. It has a higher estrogen which helps with the dryness and lower progestin, which has helped greatly with the moodiness. My body is still adjusting to it, but this is my first month. So far so good.