Am I pregnant

Hello ladies I'm totally confused at this point.. I'm always on time and never miss my cycle this month I'm 3days late having all symptoms of a normal period but instead of blood I'm having discharge. 3/14 I did have unprotected sex no pull out. The first day of my supposed period I took a test was a negative. I decided to wait and see if I get my cycle. Cause I am cramping 😩 this beyond me with this. I don't know what to do or just a cycle change! What you guys think? I need advice ladies