Does it have to be fresh pineapple?
you will only go into labor when your body is ready , nothing will help you can try walking and yes fresh pinapples are healthy and tasty, yet you might as well have a green salad if you like personally i prefer avocadoes with my last pregnancy i went into labor a few days before my due date, maybe i was ready or maybe being dehydrated and hypoglycemic helped, that wasn’t good for the baby and i ended up with a long labor and fetal distress , so i suggest you get proper food, proper rest and wait it out unless your dr says otherwise