hi. my 15 day old girl used to drink 80ml ebm every 3 hrs. as my supply is not enough, I started giving her fm (nan h.a.) for night feeding yesterday. but both feeding she took only 30ml. I changed to ebm and she took 70ml. but this morning, she took only 40ml ebm again. is this a cause of concern?

Mummy, if your breastmilk isn't enough to supply to your gal, I would strongly suggest you to latch more often rather than to give formula. The best milk will be breastmilk and feed her on demand basis meaning to say as and when she wants to drink. Breastmilk production is basically on demand and supply. You can do it mummy, jia you!