5 1/2 months pregnant... clubbing?

Karen
Hi everyone, 
I need advise: I'm 5 1/2 months pregnant and we were just invited to go out for my husband's friend whose younger than us and he'd like us to meet him in an hour or so to go to this bar that turns into a club. Honest to God....I don't know how I feel about it. I just feel silly going and I know I won't last long. I feel terrible because I know my husband hasn't been out in awhile but how do I make him understand that right now at this stage I just can't really be going out "clubbing". Not that my belly
Is big either but still. What are your recommendations? Plus it's Friday and I had a long day at work so I'm basically pooped.