Do you think this is right?

So my in laws live about 30-35 min away from my husband and I. They run their family business out of their home and my hubby is their main worker along with his dad. This morning he asked me if he could stay the night out there because he would be working out there on vehicles and such after work. He knows it bothers me and I'm 29 wks pregnant. Do you think it's weird??