Baby crying a lot!

Baby cried a lot today for about one and a half hour. He seemed uncomfortable.. N moved around a lot... No fever, diaper was clean, and he had just ate and been burped...  Took him to after hour pediatrician but they didn't see him since my son was born 34 week premie (today he is 2 weeks 6 days)
I am taking him to his pediatrician tomorrow.. But has anyone else experienced this? The moms I know said it is more than likely colic.. What you ladies think??