R.M.
Since you have a pretty good milk supply established and it sounds like you are only going to be missing one feeding, you will probably be okay. Your soreness and engorgement will get better soon. Just keep offering it to her when you are home. It is all based on supply and demand, and if she demands less, you will make less, but should still have a regular supply. It is normal for babies to drop feedings as they get older anyway. My son was down to 4 a day shortly after a year. Then I had to work and he just nursed once a day from about 16 mos on. I was still able to make that 1 feeding's worth with no problem. They say you need to do 8 feedings a day to keep your milk up, but that seems to be only at first. I'm not sure when that isn't so important anymore, but like I said, we were at 4 a day by a year. For the last 5 months or so he has just been nursing every few days, sometimes only once a week. I still have milk for him when he wants it. I am just now noticing that he doesn't seem to be getting much when he tries. So just keep up with as much as you can. I'm sure you will be able to make it to a year. Congrats on the job!