First time mom.

Hello, I’m new here. I just wanna asked, my baby is 1week old today. She sleeps a lot in the morning, & sometimes she sleeps whole day & only feed for like 2 to 3 times every 10-20 mins or sometimes only 1 bottle in a day. I’m really scared. Does a newborn really sleeps a lot? I’m scared because I feel like she doesn’t get enough food that she needs. Please tell me what to do! I really need a help.

And what to do when you have low supply for milk? Thank you.