Long story short, I had unprotected sex on May 13 but he did not ejaculate in me. Took two postinor 2 pills on may 16 and had withdrawal bleeding on May 23-27. My previous period dates are April 18-23 & March 11-17. My period is late this month and I took a pregnancy test and it came out negative. However, I did drink quite a fair bit of water before I did the test so I'm not sure if it is accurate. I'm not experiencing the pregnancy symptoms, just a little indigestion and very very slight nausea. Am I pregnant?