Oo, stress during pregnancy can definitely trigger spotting, a few of us moms experienced that, kaya hindi ka lang nag-iisa! But honestly, kahit kailan may spotting, kailangan mo talaga i-check agad with your OB para ma-rule out ang ibang reasons, dahil maraming possibilities and it's better to be safe. Try mo din mag-rest, mag-breathe deeply, and lean on your partner or family para ma-manage ang stress mo kasi talaga namang nakaka-affect siya ng pregnancy. Praying it's just stress-related sa case mo, but please see your doc agad-agad, ha!