How soon should labor be starting?

Lu
I am 3 days past my due date. I started having contractions two nights ago they stopped by noon the next day. I've been losing my mucus plug both today and yesterday. My water still hasn't broke and I am no longer having contractions. 
My baby feels very very low, I might want to say she's pushing on my cervix but as far as I know I'm only 1cm dilated. With most of my mucus plug gone, I'm just wondering how long after did you all start labor once your lost it? 
I'm ready to get this baby out.