The herbal options (and things like sex): from what I can tell, they don't force the body into labor before its ready, but instead help the body along to getting ready. A lot of them work by encouraging contractions (so may just cause Braxton Hicks) or by readying the cervix to open.
I would not be comfortable with any induction process that I truly believed forced the body into labor whether it was ready or not. (if it's at the point where there's serious danger if the baby isn't born- I'd rather just get a c-section than risk spending hours in artificial labor only to need one, just my opinion)
I would look into ways to help encourage your body to be ready. There are a lot of herbs that you can use, talk to your midwife. I believe Evening Primose Oil is one. If I'm remembering right, none of them are things you should start taking until around 36 weeks at the earliest and you start with a lower dose, definitely be careful and seriously talk to your midwife.
Not sure if this is relevant, but a large dose of strong red raspberry leaf tea has been used to speed labor up. From what I've heard it will be very intense, as it strengthens the contractions, so you're call on whether to use it or not. Look into how to do it properly- I'm just mentioning it because if you do go into labor late into your midwife's stay, you may want to make sure it speeds up. RRL tea is also a good thing to drink throughout pregnancy, it helps prime the muscles (it stimulates contractions- hence why it causes an intense, faster labor).
this is just a moment in time, step aside and let it happen