Married 10/10/12
12/3/12 - I-130 delivered to Chicago
12/4/12 - NOA1 NBC (Missouri Service Center MSC)
12/6/12 - Check cashed
12/8/12 - paper NOA1
12/20/12 - Case number showed up on USCIS website
2/7/13 - Approved
I have a normal processing just like yours. I think the only difference is that mine was sent to MSC. which process a lot faster. No kids. we are newly weds.