Is this postpartum depression

So my baby is home. She’s 2 weeks old and spent time in the nicu and she’s been home for 3 days now. She’s a good baby and sleeps during the day. But from 8pm to 6 am. She will not sleep. The nicu had her on a 3-4 hour feed and change schedule so we kept that same schedule. We’re first time parents and so this is all new. Luckily my husband hasn’t worked the past few nights since it’s Christmas but I’m terrified for the week. He’s gonna work from home but 😅 I don’t feel sad really. I cried the other night because she wouldn’t sleep and I was tired and frustrated. I don’t get mad at her I’m just exhausted. But I noticed yesterday I don’t really need to be around her. Like I’ll hold her but if she’s sleeping I’m fine. I don’t need to stare and if my husband takes her in the office to chill I’m all good. This morning I told my husband I’d make breakfast if he fed her. I just feel like I’m not interested in her. I feel awful. I’m just so tired and she doesn’t sleep and I don’t know what to do and I feel like he’s better at being a dad anyways... did anyone else feel this way?