Loosing your mucous plug sounds promising! After I had a sweep I gave nipple stimulation a go not expecting it to be anything but an old wives tale but it did bring on an hour of strong regular contractions and although they eventually stopped they got me an extra cm dilated so you could give that a go, you could even rope your other half in
failing that if she's showing no signs of making an appearance tomorrow you could have another sweep. It took 4 for me this time but I was only 37 weeks. The midwives thought I was nuts but my consultant said if I had to chose between induction and a c section I should choose the c section and I was desperate to avoid another c section.