Activating Labor?

Fresh pineapple or pineapple juice for 37w and 4d Mabisa puba? Just tried pineapple juice palang po... never did I ask my OB about it pero sa napanuod ko pong YouTube na gusto maghilab at mapabilis ang labor kumakain po sila ng pinya..? Kayo po mga momsh? Anyone tried pineapple po? Effective puba sainyo? Nag contractions puba kayo after ilang days?