First day of work, last day of 1st trimester

I'm so nervous because this is the first job I've had since 2017 when my husband and I decided that I would stay at home with our son. Well my husband lost his job and we both had to find jobs to support our growing family. My husband is at home with our son because he works nights now and I'm sitting in the parking lot panicking 🙄

I didn't tell them I was pregnant... should I have? I feel guilty for not telling but we really needed this job.