"i was on mononessa until the pharmacy changed their preferred generic to sprintec. i never have acne and within days of taking the first pill i started breaking out. my period started 4-5 days before it was supposed to and i ended up having 10-11 day periods. on the previous pill i wasn&#039;t only having 5-6 day periods. this is the worst birth control experience i have ever had. i tried it for 3 months (mail order pharmacy sent 3 months worth) hoping it was just the first month, but instead i had 3 months of the longest periods of my life."