Pregnancy scares...

My period was due Monday and I started spotting and have been since. It's varied in heaviness. Sometimes pink, sometimes red. I had all the normal symptoms leading up to expected date of my period. I had sore breasts but not any worse than normal. The discomfort is pretty much gone. Light cramping. A little stomach discomfort too. But still no period! Please give me the relief I'm looking for. I DO NOT want to be pregnant. Lol (Given the circumstances of my sex life/protection choices it's a pretty low chance, but still)