My dog locked on ,on the first of jan, so it worked out she b due,for the 5th march, so r records show she's due today, but as it a leap year,will that matter, how long should we leave her to go ova,or should we be doing anythingx

If she hasn't had them in about 2 days I would suggest taking her to the vet as they can establish if anything is wrong I will say 1 more thing thought I am guessing this is her first litter and I will just let you know you should have done a lot of research before breeding them.I would also talk to your vet about getting her spayed if there is a problem you don't want it happening again do u? Is she eating all right or acting unusual but please tell us how you get on and if the puppies are okay.

Giving Birth to Puppies (http://www.marvistavet.com/html/body_giving_birth_to_puppies.html)

Follow the link above for loads of information.
It is widely thought that the gestation period for dogs is 63 days, though that is not set in stone it is a good and accurate average.
You should find any answer you could possibly need here.
But, by all means, check back for additional answers.

Ok, why the reddie? A link was provided for resource information from people who have done their homework.