PlanB/pregnancy

Friday, Saturday & Sunday I had unprotected sex, I had a 3% chance of pregnancy on all three days, I took PlanB Monday morning, I'm currently day 3 of expected period..

I'm having the following symptoms

(Yes I'm aware PlanB can cause symptoms and period changes as it's a huge dose of hormones)

Nausea, fatigue, frequent urination, light headed, headaches, slight change in eye sight? Sometimes foggy (read this could be one), light - mild cramping, bloating. I have a huge craving for kit kats but I cannot remember if it's from before the sex I had these cravings.

I plan to call and get a blood test Tuesday if no AF, however what do you guys think the chances of me being pregnant are?