That must be a very difficult head space to be in.
You're not technically post dates till you're 42 weeks, so that's still within the 'normal' range, but that doesn't mean it's easy, and particularly if you've been expecting it for weeks and weeks already, I imagine!
'Things' can happen at any time, it's not really something you can predict, you've just got to go with what your'e feeling and what you decide with your carers is going to be best for you.
Can you talk to your caregiver about how you're feeling?