3 days old

👋🏼 my baby is 3 days old today, the past 3 nights she’s been here I have only been getting 3 hours of sleep a night well my husband gets 6-9 and gets mad when I tell him I need to pump, the last 2 nights i only got 3 hours of sleep because she won’t sleep unless we are holding her. I guess my question is does anyone know how to get them to sleep at night? Or at least without us holding her? I refuse to sleep holding her. We have a co sleeper but she doesn’t like that. I get that she’s a new baby and needs to adjust I’m just going crazy without sleep.