Orange pee in diaper

Hello, my baby turned 5 months today. Since yesterday napansin ko na nagrerefuse siya magfeed, resulting to few wet diapers. When I checked his 2 diapers, may parang reddish orange color. Though nung gabi, naging okay naman. Is this something I need to be concerned of? #Needadvice #askmommies #firstmom