Pump both sides early in the morning and that’ll give you the most milk. After that you can pump the same number of times that she normally nurses in a day. So if you nurse her 6x a day then try to pump 6x. It really just depends on your output and how much she takes in one bottle. I was working full time when my son was a baby and I pumped 3x a day then nursed in the evening and bedtime. I had no issues with supply.