Confused about OPK. Help!

So I had ewcm on Thursday, and then thought I had my positive opk on Saturday. I was also cramping and having back pain that day, so I thought for sure I was ovulating. Hubby and I dtd that night, as well as the previous two nights, but haven’t since because he hurt his back Sunday. Well, I hadn’t seen a rise in my temps, so I thought I would take another ovulation test today, and I got a blazing positive! I’m hoping to dtd again tonight if hubby is up for it, but will that be too late? Was my positive on Saturday really not a positive? The first picture is of my test on Saturday and the second is today.