What do you think?

I have been cramping on and off yesterday and today. just twice yesterday that was brief and then today I had a sharp cramp on my lower left side and later on just almost like before getting my period cramping that was really brief. I’m currently 4 days late and waiting to test till the morning since I’ll officially be on cycle day 40 tomorrow. Has anyone had cramping as an early sign of pregnancy? If so what was the cramping like for you? Or do from your experience do you believe I’m just getting my period soon, thank you in advance!