Oh hun, DO NOT worry about not being able to go into labour naturally. They have absolutely NO WAY of knowing something like that. Yes, when you are stressed, it can postpone, or stall labor. It's like in nature - when a cat becomes spooked while in labor, she can actually stop it, so she can move to a safer place to birth. Birth is an incredible thing like that.
When your little Noella is ready, she will send out signals... and you will receive them. You still have some time to go before you even hit your due date, and sure - chances are she could be a bit late from all the stress - but things WILL work out, and you will go into labor. Babies can't stay in there forever
You body is just kind of like a cat, waiting to be in a safe place before she can deliver... iykwim? Just work on getting your mind in a safe place. 