Is my supply okay?

I’ve been exclusively pumping now for around 6 weeks. LO is 7 weeks old today. My output at each pumping session is so variable! Up until Thursday of last week I was pumping every 3 hours around the clock. I’m now pumping 7x/day at the advice of my breast surgeon. For the most part I get between 2-4 each session, but sometimes I can manage a lucky 5-6 (usually at my 5am session). In a 24 hr period I make around 24-27 oz. Is this low for 7 weeks?

I also noticed I get more milk pumping 3.5-4 hours vs 2-3. If I space out will this eventually cause a drop in supply?