Am I pregnant? HELP.?

My Name's Erica. Even though my name on here is Eric. I don't know how to change it. But anyways, my period ended June 6th. I had protected sex on the 9th. He pulled out. Everything was fine, nothing out the ordinary until this week. My period was supposed to be today. I've started having cramps about 3 days ago. Which is normal a few days before my period. I feel bloated Just today cause my period is supposed to be starting. I've had 4 migrains this week. HOWEVER, I have them freguently for no reason (doctors don't know why) My back's been hurting about 3 days ago. Which is normal a few days before my period. Then today, my period hasn't started yet. I still have vaginal discharge, I've heard it turns yellow if you're pregnant, but mine's still white. I've have some mood swings. However, there's been alot of drama. I also haven't had a change in my urination frequency. What can you guys tell me?