Am I being ridiculous? (Mini rant)

Am I ridiculous for not wanting to stay out late with my 6 week old child? It's currently 10:30pm and we are at my in-law's house. I wanted to leave about an hour ago, but to no avail. My husband doesn't understand why I want to leave so "early" all the time and thinks I am uncompromising, even though I tell him he can go places w/o me if he's going to stay late. 
-Frustrated New Mom