International Women's Day is an artificial construct, but so is a banana split. It's still a rare and delightful invitation to sit down with a spoon or a microphone and talk about issues that affect women around the world.
Your body shape has changed. Your skin, muscles and other connective tissues stretched during your pregnancy and have not yet returned to their previous level of tension. This has probably led to an excess of skin/flesh immediately above or actually hanging over your scar.