Am I Pregnant ?

So my period is 5, going on 6 days late. My last period started September 20 and lasted until the 26th. I calculated on google exactly how long my cycle days are using two of my start dates and my cycle length is 28 days. I've been having sex with any protection whatsoever. I'm not on any type of birth control or anything as such as that. I'm a little worried that I could potentially be pregnant this time. Usually when my period is about to start, I can tell because I'll be cramping and slightly moody and craving chocolate. Haven't had any of those cravings or anything. Haven't really had an appetite and a few days I'll been nauseous but no actual morning sickness. Any advice?