Baby 14 days old and looks like I'll have to exclusively pump. Advice please 😊

Ra

My son is 2 weeks old today. His latchh still isn't very good and he's been mainly fed expressed milk via bottle. He's already 10lbs 10oz and is taking upto 25oz a day which I am not managing to keep up with. I'm managing to express about 15oz daily. But its a lot of work. I express every 3 hours. Sometimes every 2oz but I'm not getting great volumes at once. Any advice?

What are your pumping schedules like and did milk supply increase?