It could also be round ligament pain. I don't quite remember exactly what it feels like, but it seems like it happens in the same areas as menstrual cramps. I wouldn't worry unless they start becoming frequent and relaxing things like taking a warm bath doesn't stop it. Labor pains do feel a lot like amped up menstrual cramps.
I did, the doc told me it didn't sound like contractions, eapecially if they're going away, but she said if it ever lasts longer than 20 minutes then I should get monitored at the nearest hospital
I would call and just make sure (: