When did ur baby first roll and sit?

[allchik]

Seem to be posting lots at the mo!sorry :)
My dd is 5months and 1 wk and doesnt seem close to either!
From 2months she has had dead strong legs n will happily stand with me holding her hands for ages but doesnt seem to be close to sitting or rolling at all.
She will twist her lower body and turn ever so slighty but thats it.
When in a sitting position she will bend ovr double and put her arms out so im thinking maybe she will start using them like a tripod and learn to balance that way. I get that all bubs are dif,i know i was late doing stuff but I do feel guilty that I dnt do enough tummy time with her and thats why shes not doing it?
Can any mums come reasure me?
Thanks :)

Both at 7mo

DS is 10 months. He was sitting well by 6.5 months, but has never rolled back-to-front, and only a handful of times front-to-back (mostly by accident I think!). He hates being on his tummy, no sign of crawling, and can't stand even with support - he just flops! They are all so different.

Rolled about 4 months but has only done it a few times. Sat at 6 months (she'd been trying for months bless her) She's not 9 mo and desperately trying to crawl.

I have friends with babies the same age, some are cruising, some crawling and some can't sit on their own yet. In fact a friend with twins has one walking and the other only just sitting.

I really wouldn't worry, she'll get there when she's ready :)