Girls, we've been nursing for almost two months. We're on a mixed diet…

Girls, we've been nursing for almost two months. We're on a mixed diet as there's not much milk. And so my mother-in-law insisted that she be breastfed only and not given formula, saying that this would make more milk. I agreed and fed her in small portions all day long because there wasn't much milk. But she always gave her a little bit of formula before bed (60-90 grams) at night. But today, my daughter is sound asleep all day and now too. Maybe she's sleeping from hunger? She doesn't get much out of her breasts. I also want to breastfeed, but I don't want to leave her hungry. When I