My in-laws knew I was in labour - my DH works from home and one of them dropped around to see him for something and then called (and called and called). Given I was 4 days overdue they all guessed. My Mum knew cos I had an OB check up that morning and ended up having to be induced cos of high blood pressure - Mum always called after an OB check up to make sure it was ok.

The time after your baby is first born is so special for you and your partner. Its a time for your new family to spend together and the last thing I wanted was to share those precious moments with anyone else. We called both parents a couple of hours after DD was born, so just before midnight. Then only grandparents were invited in the next day to visit. My SILs all came in with their children anyway, which made me so mad. I bit my tongue but if they do it again this time, I won't be so polite.