when did you announce?

Just found out I'm expecting baby number 2! Our oldest will be 5 months on the 23rd so it was pretty soon. My mil keeps telling us we don't need anymore babies for a few years considering she just got 3 new grandkids in 2016. We haven't announced to anyone yet in fear of making her mad with us or getting judged. I'm only about 5 weeks so still real early. So just wondering when you ladies decided to announce baby #2? 😊