(Just for fun) what kickstarted your labour?

🌸 Holly 🌸 • frm London, mummy to Mila born 17/06/15 💕 and Leon born 12/10/17 💙 xxxxxx
I'm convinced laughing at the TV show Impractical Jokers kick started my labour! I had pains from laughing and they kept getting stronger until I had her! 
Anyone else's lavour started by something?