26 weeks pregnant and starting a new job

Hey everyone 
My previous job lost funding so I had to start a new job. I love my new job I have only been here for 4 days and the secretary keeps saying things like I hope you're not pregnant oh my god it would be terrible if you are. I just started and this is a city job I don't plan on taking maternity leave. I just don't know what to do or how to get this lady off my back and out of my business. I need help 😢😢😢