Don't think my partner wants our baby

I found out i was pregnant start of June, i'm now 7 weeks.

I feel like my partner doesn't want our baby. It was unexpected and unplanned, however we both were in agreement that we keep it.

We've just recently moved out, I work nights nearly every weekend and he has his friends over and they get drunk (i don't have a problem with it because he always tidies up after himself etc & we have a good set of friends). I don't mind missing out etc obviously he's still being able to live a funfilled life being able to do things and whatever so nothings changed for him really since finding out

But its like the little things, such as when i mention anything about the baby, he wont engage in conversation about it or he will turn his head and go on his phone. It's making me feel really down and I don't want to address it to him because he'll get all defensive about it

Is or was anyone elses partner like this?