Contractions

Rachael
I had my 37 week appt yesterday and they did an Nst and I'm having irregular contractions that are about 1-2 mins to 5-8 mins or longer then closer again and they told me to call them and go to hospital if continues. I just don't know that I'm having them except maybe the stronger ones. Has this happened to anyone? If so what did they say when you went in to be checked and monitored at the hospital? I just don't want to go and be told that I have to go home till they get closer and more consistent