Police said that 32-year-old Dean Barrett was intoxicated on Saturday when he got into an argument with his girlfriend and went next door to a neighbor's home on Grant Road.
Police say Barrett knocked on the door but entered the house without being invited.
Authorities say he allegedly assaulted the homeowner when he confronted him.
The neighbor told police that Barrett left but that he saw Barrett shove his pregnant girlfriend to the ground when she confronted him in the front yard.
Police say Barrett fled on foot but was later arrested at his home on Grant Road.
He has been charged with burglary, assault and domestic violence assault.