I know how you feel all mine have been "over due" it's very frustrating you say I will wait for nature to do its thing - but it's very hard to do. I would say have a nice HOT but not too too hot bath then do a load of cleaning washing pegging it out. Scrubbing the floors on all fours. Sweeping the stairs with a dust pan and brush then hoovering - cleaning windows helps then just chill 2/3 times this worked wonders for me it's like the baby can't take a relax, work, relax thing and by later on you will be so tired you wont want to go into labour lol then it will happen x