yay!!! Surprised, I am so happy to read your post & hear how well things are going for you...it's put a big smile on my face I can hear how much happier you sound, and it's wonderful to hear that you are having success with the BFing. You have done so well to persist with it this long! so wonderful to hear that it's paying off

Starangel, I'm much like surprised... I was on the pump from day one due to a lazy feeder, the nurses were worried about getting my supply in, then I was exclusively expressing from day 5. I have also ended up with an oversupply which I put down to pumping so much in the early days.

As for your situation - I think part of the problem with expressing & supply is that not all women have success with pumping. It can be a matter of finding a different pump, or often the breast just doesn't respond to a pump at all as it does to a baby.
If you have trouble removing milk from the breast, that is where supply issues will come up. But I wouldn't think there is any problem with combining feeding and then expressing, or expressing if it's working IYKWIM? it's just that if you are going to rely on the pump at all, you have to be diligent.

The other thing is if you are planning on BFing - and it is much easier - then I would suggest at least 6-8 weeks of exclusive BFing first, to get that well established before you introduce a bottle.

Sounds as though you are definitely planning on some expressing, so maybe in that first few weeks get started trying out the pump & see how it goes for you, if you are expressing in that time, you could freeze it & you'll have a head start then

Good luck!