Aww mama, 6oz both sides is actually a solid output, shows your supply is good! But the best way to check if baby's getting enough is through wet diapers (6-8 a day), weight gain, and how baby acts after feeding, tak cranky and satisfied means baby's doing well lah. A few of us tried combining pumping and direct breastfeeding, and we'd track baby's output to feel confident, but if you're worried about latch or milk transfer, best check with your lactation consultant or pediatrician je, they can weigh baby and give you peace of mind.