Chattyhan, my personal view is that induction with no good medical reason is taking a risk too far!
I did a lot of research into this as I was planning a VBAC and went to 42+1! Had to fight off induction because I felt the risks for me were too great.
I appreciate that you are uncomfortable and fed up but do you really want to take the risk of a labour that ends up with further interventions such as forceps and episiotemy, or ventouse, or emCS? Of course, you may be lucky and it all runs smoothly but you can't guarantee that... I believe that the few women I've heard about that say induction was not a problem were fortunate that the process started just as labout was about to start anyway.
It is considered that hormones from baby start labour once baby is ready so if you induce before that you risk baby having respiratory problems. Which is why I say that only if a valid medical reason outweighs this should induction be considered. But this is my personal opinion which you are free to ignore if you wish.
Here are some links you may want to look at before making a final decision:
www.birthrites.org/inductionRisks.html
www.kentmidwiferypractice.co.uk/induction.htm
www.radmid.demon.co.uk/induction.htm
www.mother-care.ca/bishop.htm
The last one about the Bishop's Score is something you could keep in mind when being assessed. If your score is above 9 you might consider going for induction as you are more likely to have a smoother experience.
I wish you luck in making this decision and only you can weigh up the pros and cons, only you know just how miserable you are and whether it's worth the risks.
If you opt to wait try to thing of ways to make the wait more bearable. Can you get to the swimming pool for some 'me' time? Water makes you weightless and supports youer joints, a nice warm shower afterwards is bliss! What about some aromatherapy and or massage sessions? either professionally or from dh or your best friend, mum or sis? Plan little treats to look forward to for the next 4 weeks, it should make the wait more bearable.
Also you might want to consider visiting an osteopath if your pelvis is really giving you gyp!
You might also want to check out the Pelvic partnership