Pregnancy

Can y’all see if there is a line or not? I’m on my 3rd day missed period. My last day period was on the 29th July. I had unprotected sex on the 31st July and was worried. So, I took pill B (Postinor) on the 31st of July but I failed consuming the 2nd pills because I puked. I didn’t repurchase. On the 6th August, I had a heavy bleeding like a period just for a day. My app said that my period should be coming on the 23th august. So i’m wondering whats going on