Breast milk help

Ashe 🌖🌼 • Mother to Bella & Miyah. Expecting baby #3 June 2021
So I'm getting next to no breast milk. Anyone know why? I try and pump every 2 hours as told sometimes it's 3-4 hours if I'm busy. Anything I can do to get more milk? My daughter is 2 weeks & 4 days old