Its a tough one to answer.
I know I'm O's mummy, and like Snidge said, I feel so protective of him and love him so so much, but in reality, I'm just plodding along and getting on with things, despite the fact that I have absolutely no idea what I'm doing.
Its all a bit surreal really, and in part, because of what happened surronding his birth, I don't feel like I've given birth to him. Its like the defining moment into becoming a mummy didn't happen. That sounds bonkers, I know.
We do have little moments though where I'm forced (for the want of a better way to put it) to think about the reality of things. For example, sometimes when H is holding O, he'll be chatting away to him, but O just isn't interested and will be staring intently at me instead. I'll smile at/talk to him and he'll give me the biggest cheesy grin. And then I'll ask my H why he's staring at me so much. H will always, always say 'because you're his mummy and he loves you'. I never really know what to say!
It still strikes me as odd that this little person can find me so interesting compared to everyone and everything else. I'm sure I'll figure out that it's because I'm his mummy eventually, and then begin to accept it.