Can't shake this feeling...

Mindy • So excited to have our first. A little boy in February!
I went in to the hospital last night with contractions at 2 minutes apart. They checked my cervix and I'm 100% effaced yet I'm not dilated yet... they sent me home but I have had consistent contractions all night and morning. I can't shake this feeling that something's up, I've felt very strange these past few days and I was always told to listen to my body and my body Is saying something but I'm just not sure....I don't want to go back in just for them to send me home again. What should I do!?