I was reading the other day that it's protiens/hormones from the fetus that signal the start of labour. when the baby can breathe on its own there are certain proteins released and that causes the start of labour. so I am wondering why everyone tries to start labour with evening primrose or castor oil etc. when labour starts with the baby.. .... why try to push the baby out before it's ready to go? I can see trying those things near the end but why at 36 weeks? will any of that stuff even work if the baby isn't ready?