When should I start pumping? 🤔

sunflower 🌻🐝 • 💖 4/30/13 💙06/25/14 💖1/2/16 💖8/14/19

My daughter was born August 14th been feeding her every 2-3 hours for about 20-30 minutes each side. Today I noticed the start of milk coming in. Should I wait a few days or start pumping?