Working new job while pregnant? FTM

Hey ladies, i was just wondering if any of you have any advise on starting a new job while pregnant, I've just moved to a city from my country town home to be with my "now" fiancè, i had to obviously quit my job for the move, its been two weeks and ive just got a job at a bottle shop so customer service and stocking shelves etc, the problem is Im 17 weeks pregnant and I'm not sure if I will be let go if they find out im pregnant as Im on a trial basis for the first 3 months..

I didn't tell them i was pregnant at the interviews or after because I really need this job to earn an income and not leave all that responsibility on my partner but can they fire me now that I'm hired? I was going to work up until my due date either way, 11/01/2020..

I'm stressing i wont be able to hide my stomach much longer.. and they will terminate my employment due to it being a trial period?..

Thank you in advance 💙