Job interview 29 weeks pregnant

Sooo..... about almost a year ago I had a interview at a hospital which it’s like my dream job to work in a hospital and it’s for lab. They didn’t hire me because I couldn’t do the 5 day training because of my 5 year old but he starts school the 21st so I told them I could be trained now. The only issue I’m having is them not wanting to hire me because I’m pregnant, and making it be some other excuse. Any advice? I didn’t say on the phone that I was expecting because I guess I just don’t know how to throw it out there.