Am I wrong ? All advice welcomed

So last night i was in my back room with my 5 y/o and 1y/o… mind you i am also pregnant (28y/o) .. my children’s father was in the living room playing his video game 39y/o & i asked him can you pls get the babies diapers out the trunk once your finished? Out of nowhere he gets an attitude throwing his controller and just so quick to anger yelling “wheres yours keys” and just very rude out of no where so i tell him you know what ill do it im just sick of him being inconsiderate, so i walked in the terrible rain pregnant and all to grab a huge box of diapers on my own … am i just being emotional or do I have a valid point to not want to be with this person going through a new pregnancy