80% effaced, 1cm dilated, -1 engaged

It's been 10 years since my last pregnancy so this is all new again to me. This is only baby number 2.
Went to the Dr today at my exam he said I'm 80%effaced, 1cm dilated, -1engaged, and I'm 36weeks tomorrow. Anyway, my OB made it seem like it would be surprising if I made it to my appointment next week. 
Just curious if I should ignore his comment "If you make it till next week, I'll see yah then."? Or if this could very well drag on till last minute or beyond?