feeding moms: How do you manage timing pumping?

"Pump for 10 minutes after each feeding," they say. But I am finding that when baby eats every two hours (not three) and it can take nearly an hour to feed her (say 40 minutes inclusive of getting her to burp) that expressing milk is not helpful but HURTFUL. If I finish a 10 am feeding at nearly 11 and she wants to eat again by noon, my body hasn't had enough time to make enough milk for her. She is seven weeks old. She's been in a "growth spurt" that has seemed to last about four weeks now. I just wondered how the rest of you time pumping with other feedings. My body is NOT naturally producing enough milk for her. She is 7 weeks old. I am taking fenugreek too. 9 pills a day.