Hey mummy, congrats to your newborn! Great job on using the hand expression and the hard work yield the colostrum volume. The simulation to the boob and removal of colostrum will helps to bring in the transition breastmilk quicker.
Just a quick question, is there any hormones related health issue ie thyroid or breast related surgery? Because these factors could affect the breastmilk supply. Mum with these issues may need to supplement with other methods of feeding, and she can continue to direct latching baby to benefits both mum and baby, at the same time enjoy the bonding time during the breastfeeding. Or continue to do the exclusive pumping for mix feeding.
There's also the option to get the donated breastmilk while you are working on your supply, no right or wrong for using the formula to supplement too, as it's about the informed choice to make.
How's your bonding time with your baby? As a mum, we want to give the best to our baby, and hey, you are the best to your baby!