Pineapples??

Elizabeth • Soon to be First time mommy!! My husband and I are so excited to have our little boy here!!
I was told by a few friends to eat and drink pineapples!! That it helps with the baby to come!! 39 weeks tomorrow and I'm not even at 2 cm yet. Any ideas on how to get him going? Besides sex?? 
Also is it okay to masterbate being this far along??