Im not sure

Marieee

I had sex on the 19th and the 28th of July he ejaculated in me on the 28th idk about the 19th nd I was ovulating around the 20s but idk when and my period is suppose to come this month on the 5th and today is the 8th. Is it going to come ? I took a test on the 6th but it was negative should I take another one?