can I pick breastfeeding back up after quitting?

Stephanie C • Mommy x2 👦🏻👶🏻💙 Married to my best friend.
I was told he wasn't getting enough milk, he was losing weight and never seemed satisfied, on top of that my nipples were cracked and bleeding. It was so painful. I gave up and he has been formula feeding for nearly 2 weeks.. I regret quitting. Is it too late to start again? I haven't leaked at all in the last few days :(