Babys fighting sleep

My baby would get up at 4am every morning and take a nap at 12 noon every day. And he goes night night at 8 :00 . My baby was like clock work for the last 4 month's. But now he is sleeping till 6 am and fighting sleep so now what do I do?

About Tiffany Harmon
Current: Bullhead City, Arizona
Birth: May 24
On since: Jan 3, 2014
I am a christian stay at home mom. My husband and I have been married for almost 3 years now. And on 11/07/2013 we had are first baby.