Please send positivity

So I am very irregular. I am due to start my period next week. I had sex August 27th and 28th which was in my fertile window. I’ve been having all pregnancy symptoms (except I haven’t experienced morning symptoms) but I’ve been experiencing pregnancy symptoms but I guess also period symptoms. I took a few pregnancy tests this week, all negative. Do you still think I have a chance on being pregnant and it’s just to early for the tests to show? Or should the tests be reading by now since my period starts next week? I’m stressing too much about this.