Is this a sign of labor?

Got this vaginal discharge today and pabalik-balik po sakit ng tiyan, every 10 mins po sumasakit... Nag lalast lang po ng mga 10-15 seconds... Sign of labor na po ba ito? Sana po may sumagot...salamat po ☺️☺️ #39weeksPregnant #1stimemom #firstbaby