No sign of period...

Callie

Hello ladies, my period is supposed to start in 4 day, but I am having no usual symptoms at all. I have been sick with a cold for the past few days, I'm not sure if that has anything to do with it. I did have protected sex on October 29th, but that is the only activity and i'm positive no semen got through. Do you think I could be pregnant, or will AF come?