Am I pregnant

I haven't got my period since yesterday I had to get it on the 5 I had sex on Tuesday the 28 idk if I'm late of my period or I'm prego cause on October 11 2016 I had to get my depo shot but I didn't and on November 11 2016 I had to get my other depo shot but I didn't could it be that I will get my period late or I'm prego some one help please....