In one of my old forums I was a member of (not existing anymore since this year), we had a thread where everybody just told in short what made them happy this day. Thought it would be nice for here too!
To start: I'm working for EMS and my first call today was am expected birth. So we hoped we would be able to bring her into hospital just in time. But it didn't work. I was at the patient and she just said "it's coming"... My team-mate was driving REALLY fast, it took him about an kilometer to brake - during that time the baby was just born. Even we were a really young team and not long into job, we did VERY well and even the doctors told us we did excellent.
(Our last call was a reanimation on the street, the woman did not get an own circulation again.... But I guess that's the circle of life :D)