Terrible way to find out

So we haven't told our parents that we're pregnant yet as we are moving out of my parents house and to another city 8 hours south. I wasn't ready to deal with my mom's apprehension about timing, money, etc. Anyways, today she ran into a coworker of mine, whom I shared my news with and told to keep quiet about it and she recognized my mom and said "How's Brianna's pregnancy going?" .. My mother was shocked to say the least and it is not how she should have found out. It took her a while to calm herself about it but I think she's semi excited now. What a day I'll tell ya.