"i have been on this pill for about 6 months. sure, i&#039;m not pregnant but i have noticed a drastic change in my personality and body. i have had mood swings in the past but nothing like when i started chateal. i find myself crying for no reason at all a lot of the time. i get severe cramps when i start my period and about a week and a half prior to starting my period. i don&#039;t know if it&#039;s the pills that are causing this, but my periods on average last 10+ days and the bleeding is always very heavy and my bad cramps last at least 5 days. no acne though."