I will bump this for you. I do know that it is 63 days from the first tie that should be the due date. Yes there are exceptions to this rule. My Halle didn't deliver until 67 days after the first tie. Have you had an xray done? I would defintely do that. Then you will know how many and how big the pups are. I wish you and your baby all the best. I'm sure someone with more knowledge than me will reply. Good luck to you and your furbaby for a safe whelp.