Not everyone will get labour pain (contraction). some is water bag burst, some is red discharge (menses).
Any of the above appears, you can call your gynae clinic (if they are open) or hospital to check with them, they should be able to advise you accordingly.
Meanwhile just get your hospital bag ready.
For my 1st delivery, my signs is menses (bloody show) showed in the morning 9am. called my gyane to check, he advised i am still early before i go into my actual labor. Asked me to rest at home, waited till 4pm still no sign of labor so called hospital to check. The staffs asked me head to hospital for a check since I'm already full term (39 weeks). After checked, i am only 1 cm dilated and was asked to rest at home. Went back home to rest, contraction started but is very mild. i waited till the next morning 5:30am the pain is getting more intense, headed to hospital and was admitted into delivery suite.
For my 2nd delivery, have mild contraction (like stomache) in the morning. Called my gyane to check since i'm due for check up, advised me to head to hospital when the pain gets more intense. in the afternoon 2:30 headed to hospital, after checked i was 6cm dilated and was admitted into delivery suite.