Feeling positive but stressful - work advise

After several miscarriage... finally got preg and passed four months. So excited but my boss retired... without any notice he just walked out. Awesome boss but was tired of management crap. Now I am applying for his position. He told me to hide pregnancy until I find out whether I will get or not. But so hard to tired. Four months always. And why should they care?? It’s all female in management and u expect them to understand. But he said don’t. So part of me says screw that and I don’t care. But then I don’t want to lose an opportunity 🤷🏻‍♀️

What should I do

Interview may be end of next week. Idk.. what would u do if u were in my position... at work.

I work for state..