need advice about membrane sweep

I went in to be induced on the 17 but I was only dialated to one. My Dr was still going to induce me but I asked if maybe we could do a sweep to see if that would get me going on my own, he did it and about an hour after getting home I started losing my plug... this continued all today( bigger and bigger globs sorry tmi) it's now 1 am and a wicked snowstorm with white out conditions and I've got low menstral cramps and now a light dull ache in my back. The hospital is 52 miles away. I've been induced 2 times and haven't felt natural labor in 17 years... think this is just from the sweep or the start of labor I'm due on the 22nd no water leaking they've always broke it , and no bleeding .. oh an it's really not what youd call timable contractions just off and on maybe 30 seconds or so every now and then

I only had my membranes swept with one pregnancy. I know my contractions started out mild with a backache and then real labor followed. From sweep to delivery was a little under 9 hours.