7 week old barely napping

Janet

For the past week, my 7 week old Lil boy has barely been napping during the day. He will sleep a couple times throughout the day for 20 mins at most. He is sleeping pretty good at night but by bed time you can look at his eyes and tell he's exhausted. Is this normal? Does anyone else have this issue or know what may be causing it? This is making for a fussy LO...