I have had sex fairly regularly for the past month. I was set to start my period 5 days ago. Prior to the date I was supposed to start, I began experiencing several pregnancy symptoms. I began feeling nausea, and my stomach was always so upset, it seemed all I could eat was yogurt and fruit. Also, I would get sick to my stomach just from smells. I have been having headaches, and my breasts feel tender. I have also felt abnormally fatigued. But the night before last, (3 days after I was scheduled to start my period), my partner and I had intercourse. The next morning, I had several drops of blood flowing when I urinated. And today, (after another night with intercourse), I am bleeding again, but slightly heavier than yesterday. Not enough to fill a liner or pad or tampon, but it is very liquid, very fresh blood. What's GOING ON? Someone help!