My bitch is on her due date, losed lot of mucus last night, has eaten but sick soon after. she is now breathing very deeply and very subdued she scratches her bed but is not panting like last time or paper shredding. her temp has been 36.5c since this morning thoughts please.

she either have them tonight or in the morning,once the string of mucus has been since then the puppies are on they way

I'd say they were on the way but dont forget they can go to 70 days, when she's in labour i'm sure you will know even if it's her second time good luck keep us posted.  What breed is she?