Baby is 1 weeks old born at 36weeks gestation at 1.727kg

I have inverted nipples and only getting around 13mL every time I express (3 hourly)

We try to breast feed with the aid of nipple shields before every feed which he’s getting through bottles but he doesn’t get any milk despite having a relatively good latch.

Any advice on increasing my supply (having to supplement formular as doctors are wanting him eating 32mL)

And getting him onto breastfeeding?