To be offended or laugh it off?

So my boss has known I'm pregnant. Lots of different reasons why, but I told her before our parents (oops). So I didnt really swear her to secrecy, but it was also only like a week later that we announced, so no big deal. Anyway, we brought on a new agent (real estate business) and this agent knows also. She congratulated me and everything has been fine... But then today we were emailing about tomorrows tasks, and she sends this email that says 'Ok "baby cooker"'...... 😐😐😐😐😐

My first response was what the f$!k?! But I know she has a strange sense of humor... Just kinda ignored it. But I seriously have been thinking about it since then!!

Will somebody please tell these sensitive ass hormones I have goin on that people just think they are funny when they aren't?! 😣😣