Back to work

I go back to work on Tuesday after having almost 16 weeks off work. I am trying to keep it together but I would do anything to stay home with my little man. I can’t help but to have this overwhelming guilt that I am changing his entire life and have no way to prepare him for it. I am stressing about how he will do and how I will do pumping but most of all I am going to miss our morning cuddles. We fought so hard for our breastfeeding journey I don’t want going back to work to mess it up. Any words of encouragement would be appreciated.