Help with some ways to "regulate" contractions..?

ok so I have the OK to try to do what it takes to get him out. the Doctor says he should be here within the week, and he would be extremely surprised if i made it through the weekend. he says my body and everything is ready to go, but my contractions aren't quite regular enough. i am 5 cm dilated and 100% effaced. I thought my water broke last night but they said i just peed on myself (soooo embarring) and it was just really diluted because i'm very well hydrated. I know baby won't come til baby is ready but it feels like i have a cantaloupe in my vag (lol sorry for the vulgarity) and my contractions aren't regular enough for them to keep me. can't have ...boyfriend is out of town til thursday, i walk 2 miles a day already...any other suggestions? i've tried nipple stimulation, but it doesn't really arouse me. lol and I am due on Thursday but doc says baby is already 8 lbs. 9 oz.