Interviews while pregnant

Might be the wrong forum for this question..

I am a paralegal, and love the firm I work for. However, in my line of work the best career move for work/life balance is working in-house at a company. I thought I was still a few years away from that.

However, a major company’s HR dept in my area reached out to me on LinkedIN and asked if they could speak with me. (What I know is kind of specific). Anyways, I felt I should accept an interview and tell them I am pregnant but would be honored to work for them in the future if the interview got to that point. I’m 18 weeks pregnant so doubtful maternity leave (with any pay) would be offered, so this is really bad timing. But figured this is a once in a career opportunity to be asked for an interview.

Did anyone deal with this while pregnant? Did you take the job?