I'm not sure what did it for us! I had been prepping my nipples since about 36 weeks (guess that's counts as stimming), DH and I had sex two nights before I went into labour... and the night before I ate about a third of a pineapple & carrot cake that I made (I never heard about the pineapple thing before). Oh and I also ate a hot curry 2 night prior.

Weird tho, as I wasn't even trying to induce labour at the time!!! I just felt like pineapple, sex and hot curry! ROFL

Edited to add: I went into labour a 37+ 3days