Every labour will start naturally - unless someone decides to tinker with it and induce labour first. No one is pregnant forever. So yes, your labour will start naturally, but you do have to trust that it will and trust your body. If you're stressed, then your stress hormones (cortisol and adrenaline) can hold off labour until the stress subsides - it's our natural fight or flight response protecting our babies. If you were in a war zone and under attack, your body can literally stop labour in its tracks to allow you to escape somewhere safe where labour can start up again and baby can be born safely. So if you're super stressed, it can delay things. So please don't stress about it! Relax. Enjoy the last days of pregnancy and know that yes, you can have a perfectly natural labour as long as you don't give into the pressure to be induced for no reason. Most babies are born after their due dates, many at 42 or 43 or even 44 weeks, though it's unlikely you'll have to wait that long. It will happen. We'd be a pretty useless species if we couldn't go into labour without help just like every other animal in the world. So have faith. It'll happen.