Sad after giving birth

Tori
I gave birth 4 days ago and last night I've started to feel sad. I cry almost every night around the same time. I don't feel depressed just sad. I just want time with my baby and husband but it's hard with a ton of visitors and we live with his parents. Any advice on what I need to do. I've been trying to stay as positive as I can. Plus with him going back to work tomorrow makes me even more sad.