over sensitive with SO

I hope I'm not the only one. So I'm 18 weeks pregnant. The past few days my SO and I haven't been getting along. And I was trying to be nice today. But he comes home and kind of starts being an ass. Like we haven't talked all day and he comes in and asks if I knew how cold it got last night I said no and he said "you left the door open when you let the dogs out. That's fucking money being blown out." And I went to bed at 9 had just let them out an hour before and the door was closed. But it has a tendency to open sometimes something's wrong with it. So it's not like i purposely left it open let alone the last I looked it was closed. Then I fell asleep and the dog chewed on his slippers a little bit and he got pissed at me. But whenever they chew on something of mine and I say something it's always "you shouldn't of left it out". And he showered and I just bawled my eyes out. And we he just went upstairs and we haven't talked. And now I don't want to. My feelings are really hurt still and I like hate him now and don't want anything to do with him. And I know it's sounds so stupid and I'm overreacting! But my hormones are just crazy. Has only else got this emotional with their SO?