Uy, I totally get your worry, first pregnancy is scary talaga, lalo na pag nakikita mo yung ganitong posts!
But honestly, go straight to your OB if anything feels off with you, hindi worth the stress na mag-wait or mag-post, kailangan mo lang peace of mind. A few of my mum friends said the same thing, they felt anxious reading heavy spotting stories, pero once they talked to their doctor, naging okay lang sila. Walang basagan, pero iba-iba talaga ang normal per pregnancy, kaya doctor ang best lang to reassure you. For now, trust your instincts, kung may ganitong mangyari, call agad, wag maghintay. You're doing great being proactive!