so me and my boyfriend had sex on the 23 of march we used a condom but it slipped off but we stopped and today is the 13th of april and i was supose to get my period on the 9th but it didnt come and today i started spotting i know this is a sign of pregnancy but i took a preg. test and it came out negative and im not sure what to think i hope the test is right but why did i spot then? please help me im really scared.