I’m worried about some aspects of my DS’s development and was wondering if I could get some opinions? He’s just turned 10 months and isn’t showing any signs of crawling, still absolutely hates tummy time and rolls straight over onto his back when I put him on his front. He doesn’t really push up with his arms although I know he can do it. He rarely rolls from back to front (I think he has done it twice ever). He’s not pulling up to stand but he wants me to help him stand up and would stand up bouncing up and down all day if he could! He can walk across the room (in a very bouncy way!) if I hold his hands.
He babbles quite a lot but only B sounds, so bababa etc. No mama or dada. He is quite attached to his dummy although I only really give it to him if he’s upset or tired. I was wondering if this could be delaying his speech?
He’s also not really following a point yet which I read could be a red flag for autism. He just looks at my hand instead.
He has quite severe stranger anxiety at the moment and will burst into tears if someone he doesn’t know talks to him.
Apart from all this he is generally a smiley, happy baby who laughs a lot and loves cuddles. He is eating well and can feed himself finger foods. He enjoys playing with toys that make sounds and banging things together. 
I love him so much and just feel like I’m worrying about him all the time. I know I shouldn’t do it but I can’t help comparing him to my friends’ babies who seem more advanced in a lot of ways. Do you think I should be concerned?
Thanks 