Uy, totally normal yan mommy! A lot of us experienced the same thing, the soreness just comes and goes throughout pregnancy, and it doesn't mean anything about your milk supply later. Maraming mum friends ko ang nawala ang tenderness nila around this time tapos nag-produce ng dami ng gatas after delivery, so don't worry! But since it's your first time at may concerns ka, best to mention it sa OB mo sa next check-up para ma-ease your mind completely.