I can only really speak from my own experience here, but at the beginning we had absolutely no routine whatsoever...we just did whatever LO wanted, when he wanted it! We just followed his cues, and at about 3 months old we wrote down when he fed and napped and realised he had led us into a rough routine. It changes all the time, depending on what he needs, but we do everything in the same order everyday.
I wouldn't worry about it just now, as you say, your on her time, giving her what she needs when she needs it. I think we started trying to establish a night-time routine from about 8 weeks old (bath, BF, bed), and the day-time kind of fell into place from there. I found writing down the times of things really, really useful, as it revealed that he had feeds and naps at roughly the same time everyday, and I used that to structure my day.