FTM first day home alone with baby

My baby girl is 3 weeks old (born October 6th) and today is my first day home alone with her because my husband went back to work today. I'm nervous and emotional but I know it will be okay...the night time just might be rough because my husband doesnt get home until close to 3am.

She's sleeping peacefully now and I know I should nap too or get other stuff done but I just cant stop watching her 😭 she has a little cold and I just want to make sure she's okay.