Work is stressing me out😢😓

Ladies these past weeks work has been stressing me tf out idk why !!! I been there for over a year (I'm customer service manager) and man idk why my boss has been such a dick to me today he literally made me cry over something so dumb he said he was going to write me up because I didn't send an email to him the other day about something and I did I emailed him before I left for the day and I told him and he said " okay " that's all he said ... like wow you're really going to write me up???? Man my eyes started balling I tried being strong but I couldn't just kept thinking about it.. I have been nothing but good to my job I'm never late I'm there at work every day! When I'm sick I'm there at work! And it's so fukd up and they do not see that .. I'm currently 10 weeks pregnant and my job doesn't know yet... man I just would like to quit my job and not stress my baby out ... idk what to do pls advise girls 😰 I had no one to talk to about this .