if your far enough along and you go in they won't send you home depending on your hospital, if contractions are strong but your not progressing they will induce you if your ok with it
Also, if it's not to the point where you can't talk and it's tolerable, I would wait until about 12:30. The contractions could stop and they will send you home.
I think you're supposed to time out long they last as well, but I only timed mine by how far apart they were. I would go in. Especially if it gets to the point you can't talk.