Hostile work environment!! I don't know what to do...help?!

My work environment has become very hostile the past 4-6 weeks. I announced my pregnancy to my work 4 weeks ago, but told my boss in confidence 7-8 weeks ago. I swear he's trying to get me to quit. I work for a small company with under 10 employees and I am the only female that works here. We had our office manager leave 5-6 months ago and I basically started doing their job and continuing to do my own job as well. I have not be recognized for this effort or even offered a raised for extra work load. It's stressful because when I told him about my pregnancy I hinted at getting a raise and everything I've accomplished in the past 6 months, but got shot down.

Business has been rough as we're not making the kind of money we should be during this time of year. My boss has been stressed and has literally been taking all of his aggression out on me,only me. This is the 2nd week in a row that he's made me cry, I've been able to keep my composure when he's having his tantrums, but I almost walked out of work this morning.

I honestly don't want to have to start looking for a job while Im 16 weeks pregnant, but I think I've finally might of hit my breaking point where I cant endure anymore verbal abuse for no reason.

First incident: the day before he was freaking out about getting this customer done by the end of the day. It didn't happen because the customer added something extra and we weren't going to finish it until the next day. Once we received everything we needed the next day I went to one of our techs working on the project to have him finish it. I did this because my boss was stressing and being aggressive towards me the day before about this job. After I speak with our tech my boss follows me swiftly back into the office. He started freaking out shouting and yelling about how he hates that customer and he didn't give a f*#k about him...and blah blah blah. He's stomping about like a toddler in complete rage slamming his hands on the counters. As he walks out he slams the office door so hard the pictures on the walls shook. He hopped in his truck and took off for the rest of the day. He never apologized for this. I cried in the bathroom for about 15-20 mins, I'm too hormonal to be treated like this.

Second incident: Happened this morning within the first 20 minutes of arriving to work. He requested I assign a job to one of our techs. I did this and explained that because he left over an hour early yesterday he still had two projects opened that hadn't submitted for finally approval. He blows up and says that I should just do as I'm told and my "job" is to keep everything flowing. (Mind you this is what I thought I was doing, by not allowing the tech to jump jobs.) He tells me to get the f..paused and starts blowing up that business is going down the drain and were close to everyone collect unemployment...no one cares about my business but me..blah blah. Turns to my manager and calmly say something along the lines I hate to say it, but we're going under. I'm just "venting."

My husband thinks that because I'm not part of the "good old boys club" that my boss thinks he can get away with yelling and treating me like shit. ( All other employees have been there 10-30years) I'm honestly at a loss of what to do. I've scored us 3 recorded weeks in sales this year alone, buffed up our marketing, and now currently taking care of all the books for our company since the office manager quit. I am underappreciated and hormonal af that I just want to quit.

I need advice... do I just suck it up for another 5-6months till my baby comes? Do I try to jump ship and find a new job? Does anyone have input on changing jobs while pregnant? Struggles and pros?