Anyone producing just enough?

FTM here & my LO is almost 4-weeks old.

I had a late start with my milk coming in and now it’s just enough for exclusive breastfeeding.

I try to pump in between feedings but it’s never enough for a bottle unless I use multiple sessions.

I’m not worried, she’s gaining well and is always milk-drunk at the end of each feeding. Just wondering if this is common. I see so many moms here pumping and storing within the first week of their baby being born, just wanted to see if anyone else is going through this.

Does supply increase later on?