Is this normal?

Heather • 👱11/13/15 👧🏻4/11/19 👶👶7/5/20

I’ve gone through 3 c sections but I’ve never had it look like this before. I’m almost 4weeks pp on Friday, it looks almost like the corner of the scar scabbed over and pulled off. I haven’t messed with the incision at all, I have lifted my toddler here and there when I’ve needed to. Should I have it checked out?