Pineapple for labor? Red raspberry leaf tea?

Okay so last week when I was checked I was 70% effaced and 2 cm dilated... This is my first baby so I'm new to all of the techniques of bringing on labor (ONLY if baby is ready,) and also making labor easier when it happens, I started eating FRESH pineapple because I heard it can really help bring on contractions and also make for an easier labor/ just curious if there is any truth to this and if anyone has had experience? Also I've been drinking raspberry leaf tea which is said to be just effective at causing labor and easing contractions- I'm doing an Unmedicated birth *hopefully* so I'm doing all I can to try to get my body ready... Anyone know anything about The tea OR the pineapple?