I work with my mum & with DS I was on holidays. Mum said she wouldn't tell but couldn't resist & by 10am the next day I had her ringing saying she couldn't help it. I didn't mind though.

With DD, we did IVF & everyone at work knew (same job). I only worked 2 days a week at that stage & happened to be in on the day I had my BT, so work found out about 3 seconds after I got the phone call!