birth control
"I was on Sprintec for over a year.  I took it religiously because I have never wanted kids.  I never missed a dose and took it at around the same time every day.  I am now 16 weeks pregnant.  So just warning some of you, be careful, don't completely rely on birth control pills.  I gave my doctor a list of any medications I had taken while I was on Sprintec and she told me that nothing that I was taken was known to affect Sprintec. "