labor na ba ??

Hello momshie sumasakit na puson q na parang menstrual cramp at tumitigas pa tapos parang ang bigat na,medyo sumasakit na rin likod ko pro wla pa rin discharge. 2hrs q na nararamdaman to tapos mkulit x baby.. Nag lalabor na ba ako ?? 40w1d na po aq at 1st time mom kya wla ako idea.. Pa help namn po i need ur advice momshies.. Salamat po