When C was 12 weeks. He'd spent all that time in hospital, so I was pretty much a spectator, while nurses did the majority of his care. I was terrified about how i'd cope being a Mum. (was 18, never wanted kids, and had only known I was pg for 10/11 weeks before I had him. Didn't bond much in hospital, as I thought he was going to die) Couple of days before his discharge, I stayed in the parents flat with him, doing 100% of his care, and I shocked myself at how easy I found it, and that I didn't panic. It was then I had rushes of motherly love for this tiny little dude, and I knew I was going to be a good Mum.
With J, It was straight away. Had the "been there, done that" head on.