When is best to express?

Sally

Hi I'm looking to pump milk and freeze for my 1 week old for when I go back to work. I have a double pump and always offer my son both breasts per feeding so he has the best of both.

When would be the best time to pump?

Before, after, Inbetween feeds ect?

If I was to pump Inbetween feeds and he wakes looking for a feed straight after I pump will I still be able to produce to feed him? TIA