Returning to work

Philesha Alise • Momma of 3!
I'm beginning to have some anxiety about returning to work! Although my LO will be 14 weeks when I return, I still feel like we won't adjust well. I'm so nervous to leave him because I feel like he's still too young. My husband and I have a wonderful nanny to watch him but I'm still freaking out! Help!
Have any of you gone back to work? How have you and the LO adjusted? Also, I an exclusively breastfeeding... & work as a hairdresser with a crazy busy schedule. I'm nervous about being able to pump! 
Any feedback and/or advice would be so awesome! Thank you!