My period started May 1st on sunday, and ended on Thursday the 5th of May, and I had unprotected sex on May 6th.... and so I know I'm not pregnant right now because I went to the hospital on Sunday May 8th and the blood test came in, and everything went negative, even the pregnancy test, because its too early . So I have two weeks left to actually be concerned if I'm pregnant or not. I have an appointment made Saturday, May 14, to decide what decision to make IUD, or Birth Control Pill.