Tummy time exercise

So I have been working really hard with Cooper on tummy time and building upper body strength. Here are some pictures of his hard work. This aren't all the cutest pictures, but they mean the world to me. I put him on his arms and he was able to hold the position briefly. This is huge for him as a week ago, he could not hold weight on his arms at all. As you can see by some of the faces, it is a lot of work!