Help!! Any tips?!

Katie
Due Friday 10/28 and I've been consistently having contractions.  Last night they got the point where they were 4 minutes apart for over 2 hours.  We went to L&D.  I was 3 cm's when we got there.  Contractions kept coming on strong, 2 hours later they checked me again and I was 4 cm's.  They sent me home anyway!!  I didn't progress fast enough.  Now they want me to come back if they get even closer together and/or my water breaks.  But I'm still consistently at 4-5 minutes apart and miserable!!  Any tips or advice to get this show more on the road?!