Could be braxton hicks..if they are irregular pains it most likely is that..with real labor contractions your stomach will really tighten up hard with the pains and they will become regular and closer together but trust me you will know..i know a lot of people say that but its true you will
If they last longer than an hour, and become more and more intense, they could be the real thing. But if they come and go just may be Braxton hicks.