First I want to send kudos to your doctor for not pushing c/s after the failed induction - so unusual these days. I also want to applaud you for not asking to have c/s after 29 hours of Pit - this tells me you are strong! The thing is, obviously your baby is not ready to come out yet. If she/he was, you would have baby in your arms today.
So what to do now? Go about your normal routine and continue to make plans. With 3 kids you really do not have a choice on that one. If baby comes and "messes up" plans, than so be it. This is the nature of parenting anyway and your other kids will get over the disappointment of things not going as planned. I know this is a hard thing to accept because as a mommy, you want every one of your kids to feel important and supported. I have learned in the past 13 years that they survive these little disappointments AND SO WILL YOU! FYI, my second son was due on my first son's b'day (they are 11 days short of 2 years apart)
Back to baby, first babies generally come into the pelvis before labor begins. Subsequent babies are likely to do so once the labor ball gets rolling. Try to take a walk every day, continue the pelvic tilts (but do them on your hands & knees) and sit on a birth ball & hula hoop it. These things can help baby tuck its chin. Check out this website for help with positioning: www.spinningbabies.com You might want to visit a chiropractor for an adjustment too - sometimes loosening the lower back & pelvic girdle helps baby shift.
Have faith J., everything will work out just fine!