I was on the NuvaRing for over a year, but because of personal reasons I needed to switch last minute to Sprintec. I usually start my ring on Mondays, but because the pharmacy screwed up I started on Tuesday. I was safe all month until day 19 when the condom broke. I didn't worry too much about it then because I figured I've been on a form of birth control for so long the hormones were still in my system. Until I found out that it can take over a month for Sprintec to work... Is that true for people only starting bc for the first time? Now I'm very nervous that I could be pregnant, I started my placebos today. Please help!