these contractions !!!

I been having contractions since 8:30AM this morning & finally went to the hospital @12 ish ... PM & and was only 1cm dilated with a bloody show , they sent me home & they've just got worst ... I'm hesitating on going back later @12AM OR @3AM & hopefully I'm further because these contractions are some what longer & harder & my back is killing me ... hopefully she comes tonight or early morning instead of waiting for my due date which is June 30th this Friday