Pregnancy or PMS?

Britt
Ladies please help me with your wisdom! 
Okay so my typical cycle length is 31-32 days (which I am pretty consistent with that it is very rare im ever late) more than a day or two at most, although I have been late up to a week on a few rare occasions) and my period usually last 6-7 days. 
My PMS symptoms usually include cramps, increased bowel movements, irritability and bloating.
I am currently 5 days late and I've still had the increased BMs, irritability (BIG TIME), bloating. I haven't had any cramps though, nor have I been nauseous or had tender breasts (which are two typical prego signs). I have had some pretty severe lower back pain (which hasn't been an issue for me in several years) and I have had some cravings- not many but I have had a BIG increase in appetite.  
So y'all think this might be me just being late or should I go get a test pronto??? 
You're advice is GREATLY appreciated.