First, dont be too worried about a routine. I have 3 kids, and a patern usually emerged after about 4 months. Also check out your diet. My second had problems, I had to cut out many foods. go to www.fedup.com.au
I wouldn't be trying to get her into too much of a routine just yet, firstly because she's only really at 3 weeks old and secondly because until the reflux is a little under control a routine probably wouldn't help too much.
I know that's probably not what you want to hear and I hated people telling me to not expect too much from my premmies, I hope it gets better for you and bubs reflux starts being a little easier to handle.
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