I went back to work when my LO was 3 month old. The first week was hard but after a while I got use to it. I pump at work and during my pump sessions I usually look through pictures or videos of my LO. My LO is with my mom 3 days a week and at day care 2 days a week. She loves both places. I think the most important part is finding a caregiver that you are comfortable with.
Re: Going back to work
Good luck!