No wet diapers today

I’ve been exclusively breastfeeding.. it’s really harder than I thought.. baby’s first 24 hours had plenty of wet diapers. We had to wait for her to poop today bc she didn’t go. I’m worried about if she’s getting enough because her poop wasn’t a lot and I don’t think I’ve noticed any wet diapers today.. she’s been feeding a lot and feedings are lengthy but my nipples are so sore.. lactation consultant said baby is latched fine but it hurts oh so badly.. she’s now 2 days old.. how many wet diapers should she be getting?