What is this song? It is driving me crazy!?

I heard a song on the radio yesterday. I think it is new because it was the first time I heard it. I cannot remember the lyrics (haha...makes the question tougher, huh?) but it is a country song and it is talking about a father who just had a newborn girl - the sleepless nights are getting rough and it basically says not to rush time because it goes by really fast. Then the next stanza talks about the first day of preschool or kindergarten and she is screaming and begging him not to leave then repeats the chorus... It was a great song..I would really like to look it up but can't remember the lyrics...