Oo normal lang yan, especially during pregnancy kasi ang hormones mo ay tumaas at nag-aaffect sa lahat ng tissues mo including sa breast area, a few of us moms experienced the same thing, parang mas soft at sensitive lang talaga. But if may unusual discharge, redness, or pain, better check with your OB just to be sure everything's okay lang, kasi buntis ka pa lang at importante na lahat monitored properly.