My store breeding pairs were bought on 11/25 and retire on 11/17. My 4th gen dogs were born on 11/26 and retired today. Shouldn't my 4th gens retire on the 18th? 

Maybe sleep deprivation and stress are getting to me and I'm just really confused? 

Can you post one example of each set of dogs? =)

No you are right, if you count it out from the 26th of Nov, March 11th comes to 15. The "retires" date is a week early on the page. But posting links to the dogs would be helpful for people, it took some time for me to figure out which were your dogs you were referring to.

Sorry! Here is a link to the 4th gen who seems to have retired early: https://horsephenomena.com/dogs.php?id=114112

And one of the store dogs who has not retired yet: https://horsephenomena.com/dogs.php?id=114640

Also, my back up pups were born on 02/25, and should have just turned 2, but they turned 3 instead. . . https://horsephenomena.com/dogs.php?id=117071

https://horsephenomena.com/dogs.php?id=114112 has to my working aged a week ahead of what it should have (was born on a Monday that's why the dog aged yesterday) but https://horsephenomena.com/dogs.php?id=114640 (born on a Sunday so ages Sundays) but its 15 weeks since 25th november

Just noting here too that horses and dogs born on Mondays were all set back a year!

Thank you, Blitz!