Ay, I feel you, a few of us moms with multiple C-sections noticed iba na talaga ang scar area sa third pregnancy, parang may pulling sensation or heaviness, and honestly it's worth checking with your OB just to be safe kaya you can rest easy, lalo na kung bothering ka siya. Good thing walang spotting, but that pulling feeling might be scar tissue stretching or ligament stuff, which is common pero better confirm lang with your doctor para sure, especially by 20 weeks palang kayo. Salamat sa tanong, at hoping smooth sailing for the rest ng pregnancy mo!