Am I wrong for feeling this way?

I’m about 15 weeks pregnant and my belly is starting to show. It’s felt like a milestone to see this physical validation.

Today, my husband and I had an argument again and I can’t seem to see eye to eye. I need a second opinion.

My husband wants to do a guys trip to Vegas. The people who he wants to go on with are guys who are 1)not married 2) not in long committed relationship 3) have no children on the way and 4) no pets. He wants to have alone time and while I understand this, I don’t get why he couldn’t do a day trip somewhere else. I’m upset at him for not understanding that I’m pregnant and need him during this time. I’m also really upset at the folks who would go on this trip with him knowing that he has a pregnant wife at home (who would have to take care of two puppies).

Am I wrong for being upset?