Hi, I can't remember the exact grams but I remember when the mchn visited me at home in the first few weeks she said my ds was not putting on enough weight and I had to express so I went out and bought a pump and spent the next few days an emotional and physical wreck trying to breastfeed and pump my grazed scabby nipples and he wouldnt take any expressed milk from a bottle I seriously cried almost non stop for days. Then my next visit which was only a matter of days he was weighed and had caught up! So I dont know if more milk had just come in or he had just started feeding better who knows but I think I was made to panic too soon. Sorry I cant be of more help I agree call the ABA they will give you some better advice, and just so you know it gets so much easier soon. I totally forgot about this period until I read your post. In the first couple of months once I stopped the expressing and started sleeping when he slept (day or night) I was alot happier. I'm also still b/feeding and he is nearly 2.