I have had loads of w*anker bosstards but none where as bad as that and from here it looks like conrtsuctive dismissal ie( where the boss/emplyees make life so hard in your job you have to leave. ) this is a case for a tribunal. I found if your boss does not like you they do tend to start with stupid warnings, mine was not enpying a bin that wasnt even full??? yeah i got a warning for that! few other stupid things followed then i was fired and accused of something I didnt do. I took it to the trade union and they laughed as they could see what he was doing. he had false witnesses to me doing somthing that caught themselves out. I ended up winning my case when he refused to appear in the tribunal and the company had to cough up conpensations. He was sfired with the staff that set me up after that.
It was stressful being in threat of loosing your job everyday especially when I had a mortgage to pay and the nasty digs you cant answer back as you know you need the job. This is how I learned that no job is worth it! no one is allowed to treat me like that anymore and i dont care if they sack me i am a fighter and will get justice in the end.
And so will you here because its always people like you who come out as long as they put up a fight! so dont let him away with it, go to an outside union and they will even get you a solicator. I got my wages paid for the tiem i was unemployed because of them and as my next job was lower paid they paid me the difference! and severance pay for years of being with them. Glad to say none of them had a job after that anyway.
it will make you stronger and get back at them for causing you stress during your pregnancy!