Switching from exclusive pumping to breastfeeding

Hi mummies, my baby is 6 weeks old now and I have been exclusively pumping because I had problem latching previously and had sore nipples. I want to try to switch back to breastfeeding. However, how do I manage my other boob as my baby is full after emptying one boob? If I haakaa the other boob, the letdown collected is very little and not enough to store. Should I pump the other boob to prevent engorgement? Or do I wait till next feed to give her the other boob?