First: Welcome to TFP!
I am going to be honest with you, your pool is not going to be clear by this weekend unless you drain it. Even if you had an adequate test kit in your hands right now it would still take time and those Intex filters are not very good at clearing up water. There's just too much going on with your water that it's not going to get fixed overnight. I would suggest draining anyway to get that floc out of the pool, it will wreck havoc on filters.
However, I do strongly suggest you stick with the site and get a kit. The kit and reading up on the procedures here are the best defense against having this happen again and preventing another weekend with a cloudy pool and disappointed kids. It's a bit of an investment, trust me I put it off at first too, but since finding this site I have never had an algae problem in my pool (unless I intentionally caused it, sometimes I like to practice my SLAM technique).