opinions please...

I'm 32 weeks pregnant and my partner decided to say tonight that when he's bin at work or has work the next day he isn't doing the night feeds, and it's really pissed me off, so I said 'do you expect me to be doing it all day aswell as all night' he said well you will get to sleep when the baby is in the day. I have a 6 year old and a house to run, there will be many times where I won't be able to sleep when the baby sleeps. Am I being selfish ?. I always thought he would step up to it when needed but him saying that has threw me right off. I don't think we are gonna get along when the baby is here, sometimes I do think that I'm better off on my own.