I have been taking Lutera for 8 months now. This past weekend I was fairly sick and don't remember taking my Friday pill. I may have lost it while trying to take it out of the package. Since then I have taken a pill each day at the right time. Thats Saturday, Sunday and Monday. I had unprotected sex with my boyfriend Monday night. Mind you this is my third week and my pills are up on Saturday before i start the fourth week. Should I be concerned?