OH going out more now I’m pregnant?

My OH and I aren’t really the ones for going out every weekend drinking but ever since we found out we are having a baby, he’s been having a couple beers after work (I don’t have a problem with that). Then last weekend he went out with with some guys he works with and didn’t come back until 4am, I was so pissed off because we have a rescue dog too that finds it difficult to settle and as I expected, he didn’t go back to sleep so I didn’t either. He kept apologising and saying that he won’t be going out and make up for all the stress he made .

Then today he’s messaged me saying it’s his friends birthday next weekend and is it okay for him to go out. I’m so fucked off that he’s doing this, make me feel crazy for feeling this way.

Am I out of order?