With our oldest child, Carrie, we were just chilling out at home watching a movie with the dogs! Not terribly interesting...
However, when we had an opportunity to adopt her little brother and we received that call, I was taking a nap (as is my way). The SW seemed intrigued that I was sleeping at 6 PM.
When Logan was born, I was actually in a bar where you can order breakfast hanging out with a friend I hadn't seen in years. I got very excited and he responded, "What? You're having another kid? And you're adopting?!?!" I hadn't mentioned any details I guess! He only knew that I had a daughter! (Not sure why Brightness didn't figure out she wasn't bio.

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With #3, got the call at work. Fairly cool and good surprise. Adrienne was born though while I was doing martial arts training. I was EXTREMELY sore when she was born and it hurt to hold her!
Amie, the baby, managed to start her way out while I was teaching a yoga class and three students simultaneously fell out of headstand when my S/O screamed the news at me!