"at first i had the paragard for four months and it was excruciatingly painful. come to find out, i have endometriosis and that&#039;s why i was in so much pain. my doctor prescribed me nuvaring as treatment for my endometriosis and as birth control. so far, i love it. i keep it in continually, so i don&#039;t get periods. the only downside is it makes me very nauseous when i first put a new one in. other than that, i love that i don&#039;t have to remember to take it everyday and my sex drive hasn&#039;t changed a bit."