I thought I may be pregnant but took 4 tests all neg.. my bf and I split in the lateFeb. Early March. My period ended March 25. March 29 I had unprotected sex. March 30th I started spotting. Its very light and its enough to wear a pad. Its very bright pink on toilet tissue. What is this? And why hasn't it stopped? I have never had this problem before. My cycle is always on point. The only time I have ever bled abnormal was when I concieved my son and that only lasted a day. HELP!