Could I be pregnant?

Hannah
I didn't even think about it, I just thought that I was getting ready to start but I'm 5 days late.. usually my period will only be irregular if I miss pills or a pill that month but this month I didn't miss any pills. I'm cramping like I'm on my period, nauseous, acne, muscle pain, EXTREMELY HUNGRY.. what do you guys think? 
Am I just late/irregular or Am I pregnant?