I'm glad he did well and goes back and forth just fine

Hopefully that will ease some fears, or stress about going back to work?
I'm sorry that you had to do it.. but you did do the right thing! It's really good that you are doing it now and not rushing the process at the time of when you have to go back to work. Giving him lots of time to get used to the new way of feeding.. or option I suppose, since I'm assuming you'll breast feed when you are home or whatever??