Am I feeding her enough??

Ichigo • I have one daughter. I'm also pregnant with my second. Unmarried.
So my baby is like 2 days old. I had some issues with breastfeeding so I started giving her formula. I only gave her two today, then breatsfed her the other times. But it's like she's never satisfied. She doesn't like the bottles and will only stay on until she's full.
But when I breastfeed she seems like she's always hungry. Plus I'm having latching issues. It's very frustrating. I can never tell if she's hungry, or is just sucking for comfort.