Need Opinions!!

Hi all! I'm 7 weeks pregnant and have a 7 month old as well. My husband who is 25 years old enjoys his video games quite a bit. My question is, is it appropriate for him to spend the night at his friends house at least once a week to play games all night? Last minute, too. I'm not trying to micromanage anything I'm just wondering what you ladies would do in this situation?? He's not working right now, finished school a couple weeks ago, and doesn't do much around the house. I just don't know any other married couples where one of the spouses spends the night at a friends house so I'm wondering if this is normal or common?? Thanks!