no,you can travel on the day of issue if you want,my sons ran out and we got his new one on the day we travelled,picked it up went straight to gatwick and went
if u have changed name due to marriage,, all u need to do is take a copy of marriage certificate with u..
especially if this holiday is part of ur honeymoon..
but mainly get the ticket in the name of passport this way u do not need to get passport changed untill it has expired....