Should I be worried (csection)

I’m 4 weeks pp I have been feeling great had my incision checked twice at one week then 2 week pp and everything looked fine! Perfect healing but now 4 weeks pp I felt a little pain on the ends of my incision so last night I checked it I have an overhang belly so I checked and ran tissue over and it had a small spot a little moist I’m imagining it’s pus but it was barely anything I don’t have a fever and it’s not too painful it’s a little red like a red spot

Should I call my dr ?? I’m so bummed that this is happening I thought I was in the clear 😢