Should I keep going

Hey all, I’m 2 weeks pp and still deciding whether to exclusively pump or not. I’ve been breastfeeding once a day and not loving how long it takes and how Im always unsure whether baby has eaten enough since he always falls asleep.

I am also pumping every time he needs a feed so around 6-7 times a day. I average around 70-100mL each pump which takes me 20min.

A question: does your supply increase within the 20min or so you pump overtime? Or would I need to pump for longer to get more breastmilk in the future?

Bonus question: does anyone regret exclusively breast pumping?

Thank you!