I wear DS still.

Head raising pretty much from birth
Rolling over 8w
Sitting up 5m-ish
Walking holding on 6.5m
Cruising 8.5m
Walking unaided 9m (although he's still wobbly and prefers cruising).

He also has six words now (daddy, mummy, hi, hug, yes and no) and understands a lot more.

DS also hasn't crawled at all, he went straight for walking. To encourage crawling you can gently play opposites with his limbs (bring his right foot and left hand together a few times, then left foot and right hand), but tbh babies will do what they do when they do it, not when we want them to. DS will try to walk in the carrier, which can get a bit painful, or climb up over my shoulder if I'm holding him. It really hasn't delayed him at all.