Is my baby behind the curve?

Emmaline

My little guy is a few days shy of five months and still isn't even rolling over. He has been talking and holding his head since a couple weeks old and started sleeping 10hrs around two months but the physical mile stones are not aligned. He can barely do the push up position and doesn't want to roll over. I tried to show him the movements and even waiting it out during tummy time but he just cried himself to sleep and then woke up crying again 😅 I just feel like he is behind when it comes to movements. Anyone else in this situation? Any ways to help or is he just gonna be a late bloomer?