Help I Only had Sex Once During This time

Imani

I had sex on Cd 16. I’ve been using Clearblue Advanced Opks & CVS Brands and Maybe Equate. My First Close to Positive was cd 15 7/5/20. I also received my solid smiley that day. I had sex 7/6/20 Although I only had sex the one day is there still a chance? Also do I ovulate the day of or after. Premom says my peak was 7/7/20 & CVS Says 7/5/20. Either way did I miss either ? Pics included. Praying for a rainbow baby lost my 1st last November.🧸🤞🏾

Last picture is a few minutes ago 7/8/20 supposed o day according to PreMom.