I'm not sure, when DS came along, I'd had pains from Saturday afternoon similar to what your explaining, and he was born via emergency c-section on Wednesday morning because he was stuck in my birth canal (so, the Ob said to me that technically I was in labour for 5 days)
I KNOW yours isnt the same as my situation, but I really hope bubba stays put just for a couple more weeks for you Or, if you want s/he out, I hope s/he is out for you soon