I agree with above. I was in L&D 2 days ago due to severe menstrual like cramps and
they were keeping my
focus that I didn't even notice I was having contractions every 2-3 min apart. It could be something as sim
ple as that. It could be round ligament pains. Better safe though. Specially since you were dilated to 3 already, this
could be it! If you want, take a 15 min warm bath and
see if it helps. If it doesn't, go in. Worse case scenario, you will relax a bit before going in, right?