I've also had this intuition apply with an adoption. Our friends Kyle & Chelsi had been on an adoption waiting list for nearly 2 years (if I remember correctly). One day in April-ish 2007, I was driving north on Hollywood Blvd, nearly at the intersection of Henry when I distinctly remember getting this feeling of "Kyle and Chelsi are going to get their baby before Corgan is born" (he was due in August 2007). I'm pretty sure I remember thinking that the baby would be a girl. :) In June of 2007, they were blessed with Ethan, a bouncing baby boy, and Corgan was born 2 months later.
And most recently, I got that "she's in labor" feeling with my friend Christina. I knew she was due in early September, but she hasn't had any signs of having the baby early (that I knew of anyway). When I was driving home... maybe around Ocala, FL... around 2am Sunday night/Monday morning, I got the feeling about Christina. I've never told anyone when I had that feeling before I got the confirmation that it was right, but for some reason I decided to email Christina when I got home (around 4am) and asked her "Are you in labor yet? For some reason I got a feeling that you are. :S" Her response 5.5 hours later was "No, I'm not in labor." But... last night she was admitted to the hospital in labor and had the baby this morning!
It seems like I've had this happen other times too, but these are 4 cases that I distinctly remember the details of. Crazy!