fam and my fiance

what do you do when people ask about the wedding etc... and ur now engaged and u have ur dad's blessing and u and ur fiance finally sets a month and date May the 4th, 2019 and then your dad turns around and says yall are going way too fast and its only 10-11 months till u get married. what do yall think? Any advice on how to deal with this? does anyone think we are moving too fast? tbh i don't think we are I kinda can't wait to get married and move out of where I'm at! 💒(got engaged July 14, 2018)