Symptoms

Has anyone had pregnancy symptoms from really early on?? I'm ovulating now, have been since Sunday, finish Saturday according to glow. DTD Friday (2 days prior to ovulation - 3 days after last AF) and since Monday have been cramping and nauseous. The cramps are pretty intense like I'm about to have a very heavy bleed!! Headaches on and off also. I guess what I'm asking is, is there a chance I'm pregnant? With my DD I knew after about a week, I just felt it, and I'm convinced I feel similar now. Just terrified of getting my hopes up then getting AF at the end of the month x