"i&#039;ve been on the nuvaring for 4 months now. it is effective as a birth control and has cleared up my skin a bit, although i still get a few hormonal cysts a month. it has not affected my mood and it pretty much feels like i&#039;m not on anything. most days i wonder if it is even in, but it always is when i check. one side effect is i have lost 15 pounds since i started it."