[Jovial.]

I have always heard that medications can effect the way the pill works, my doctor warned me of that when she put me on it. However, You have to remember that the pill and even condoms are not 100 percent effective. They make mistakes too. I was on the pill for 6 months and didn't miss a day. I am now 19 weeks pregnant. So things happen. I however, wouldn't stress. Take the test again in a few days and if your period doesn't come and the test is still negative, than make an appointment with your doctor, and make sure you use condoms next time if you really are negative.