What age

[chandni3]

Mine laughed at 3 months and then didn't again for a few more months. She didn't roll over until 6 months and then was doing both front to back and back to front. She's 8 months now and no sign of crawling yet.

[bezark]

DS1 never even attempted to roll until he started crawling (at 9 months), then it was just a way to get from his back to mobile. I can't remember when he laughed.

DS2 will be 4 months tomorrow. He laughs (and has for about a month) but mostly when tickled. He giggles at "peek-a-boo" but we only get the belly laughs from tickling right now.
He also has zero interest in rolling over completely. He rolls side to side to watch his brother/the dog/etc, and he spins in circles on his back, but no rolling. I don't often put him on his tummy 'cause he hates it and I don't find it necessary, so I'm not sure if he's able to roll belly to back.

[WilliamsMama]

My son laughed out loud at 2 months 3 days, but we still laugh (5 months later) that he doesn't know how to laugh, as he does it breathing in. We call him a pterodactyl.

He was rolling from tummy time to his back at 18 days, but that was more of a mistake, though he did it several times. He would just get his big head so high and lean to the side and roll. At 3.5-ish months he was rolling from back to stomach, but FORGOT how to go the other way for months and would get stuck, and it was so frustrating especially at night time.

He's been crawling since he was 5 months...he likes to get around. Wears me out.

I wouldn't be worried, I know my mom said that my younger sister was 3-4 months behind me on everything and just sat there like a lump, and now she's a successful physical therapist.

[SarahS12]

I don't recall when DS started truly laughing out loud. 4 months? He was able to roll back to stomach in one direction at four months to the day. He didn't figure out how to roll stomach to back and the other direction until 6 months. It's kind of crazy, but he tends to hit milestones on his exact birthdate each month.

[bluedaisyma]

my 8 wk old started laughing this week. he has rolled over from birth- back to side- then front and front to back. I thought it was just a newborn reflex but he still does it bc he doesn't like to sleep on his back. he doesn't do the roll all over the floor, just the rolling one direction.