Pumping at work

Johanna

So my first pump at 10 am I get 10 oz it’s still flowing but I only have my lunch break to pump so I split it into 2 15 min pumps. Well the second time at 1pm I only get 4 oz altogether on a good day. Would it be better to just pump 1 time for the full 30 min or keep to 2 shorter pumps. At home baby nurses every 2 to 3 hrs