I am 22 years old and I am worried that I may be pregnant. I switched birth controls and two weeks into my new pill I had sex with my partner with a condom. To my knowledge, it didn't break. I am now four days late for my period and my breasts are very sore. I took a pregnancy test and it came back negative, but I am still worried. I am now taking Diane -35 and before I was taking Alyacen 1/.035. I take my pill every day at 9:00pm give or take 30 minutes. I have a tendency to be hyper-paranoid about these sorts of things.