23 weeks pregnant, I need emotional support. I have no one.

I am a stress filled person... me and my fiancé where in an argument, we where talking about something on messages and all of the sudden he sends this “yeah😌” but it doesn’t pertain to our conversation at all....... it made no sense and he swore up and down it was supposed to be sent to me but I fee strongly otherwise, he even tried to make it make sense, which made it worse. So we got into a very heated argument which led to me storming out of the house to go to my car. He attempted to stop me by pushing me back but made me fall directly back on our standing mirror which resulted in both me and the mirror falling against the wall....... he has never payed hands on me like this. Recently he even lets himself slip and tells me to “shut the fuck up” during an argument or tells me I am “pissing him off” as well started calling me a bitch if he lets it slip on accident.. I can’t help but feel like something is going on or he is cheating on me at work. Help me