Going back to work anxiety

Brooke

So I am unexpectedly going back to work next week, I was initially thinking I would be able to stay home until January but plans have changed suddenly. My son is EBF and about to be four months old. I haven’t been pumping at all so I have no freezer stash. With my first I pumped and made sure I had plenty frozen for when I went back. I am freaking out. What do I do? Should I start pumping multiple times a day?

I really don’t want to supplement with formula because he is already at the top of the charts in weight.

Anyone have any advice?