I had sex on the 2nd, 4th, and 5th. I started my birth control on the 12th of February, missed a day or two, and never took it at the same time. My boyfriend came inside of me all three times and I was supposed to have my period on the 12th or 10th, because sometimes I get it two days early. As for pregnancy tests, I took a First Signal and two First Responses, but all negative. Could I be testing too early? Should I get a blood test?