Two days later.

After that Jon used the stone to find out if the ring actually worked. He looked nine months into the future as he saw Amanda giving birth to a boy. He also found a way to not have the boy mature quickly like he originally wished for. He looked further to see that the boy grew up and looked just like him, only with Amanda's black hair. He also made sure that Amanda would not ever come back so she won't cause future trouble, and he found out that Amanda was infertile.
He decided to use the ring again, this time he would have a girl wear it.