I'm on the birth control Sprintec. This past week I got a new schedule at work and so it's been hard to take the pill at the exact same time every day and I even accidentally missed a day, but I took two the next day. I have had sex a few times during this week as well. I have a period tracker that tells me I am a day late for my period but I don't usually start until 2-3 days in to the white pills. I still have blue pills to take. And my period has not come yet. Should I be worried? Are you supposed to get your period on the blue pill? I've never been late before.