You probably selected the Dam Owner button rather, than the Dam and Sire Owner button.
I made that mistake a few months ago.
You should recieve an email for the Sire Owner with a link in it.
If the link doesn't work, you should be able to get in and confirm the registration at:
https://www.apps.akc.org/litters/sire/i ... tion=login
Here are the 3 options from the site.
"Dam Owner
Click above to start the online litter registration process if you own the dam, but not the sire.
Sire Owner
If you own the sire and if the dam owner has started the online litter registration process, click above to approve the litter and complete the registration process.
Dam and Sire Owner
Click above to complete an online litter registration if you own both the dam and the sire. "
If that doen't work try calling the AKC. I have always found them to be friendly, courteous and helpfull
Good Luck
Keith