Awww Jen, try not to worry, these things are never as bad as they sound lovey.
I had a sweep with DS2 (eventually!!) then I had some gel to start me off, none of them did anything straight away, about 12 hours after the gel I went into labour, two hours later he was here.
The sweep was uncomfortable at worst, but then I had visions of emergency sections and DS1 stuck at school with noone to pick him up, so I kind of had other things on my mind!
Just try to relax, and tell us how it goes when you can, lot's of love and luck xxx