The baby lost 20% birthweight and didn't put back on until a month old. On pediatrician advice we've done formula top up though she takes the breast first each feed. I am finally confident I am producing enough milk - she is all milky when she pulls away and my breasts now leak etc. But sometimes she will feed for an hour and still be hungry.
We're offering 90ml top up about three-four times every 24hours, so not every feed. About one of these she doesn't finish it and about one she wants more afterwards.
Obv I don't know how much she gets from breast. And we are with HV help trying to get her back to exclusive bf. But in meantime are we offering too much top up? Or not enough? Or right amount? I just have no idea.