Is my baby getting enough milk?

She’s one month old (almost 6 weeks). I’ve been ebf her but pumping daily to store milk for when I return to work. She use to sit at the breast for 15 mins or so and now it’s 5 mins. (Sometimes 15 mins though.) She still pees three or more times a day and poops every other day or so. She’s not unusually fussy either.