What were your kids able to do at our age? We lie on our bellies and o…

What were your kids able to do at our age? We lie on our bellies and only raise him by crying and snotting. He likes to stand on his feet (I know it's not right, but he jumps still by himself). He sleeps sometimes on his side, mostly on his back. We turn over from his back to belly position. That's all. He holds his head but doesn't for long.