I am 39 weeks with my third child, I have been having strong contractions for about 3 days now, they went from 20 to 10 down to about 6-7 minutes apart, lost my mucous plug 2 days ago. With both my other children, I never had to deal with contractions this long. They go from 8 mins apart to about 15-20. I'm sure this is normal but would just like some assurance.