Alam ko, mama, nakaka-worry talaga lalo na pagkita mo ng ganitong cases around you. Pero honestly, ang best person to ask about baby's heartbeat changes is your OB, they can compare your scans side-by-side at explain what's normal progression para sa inyo specifically, kasi every pregnancy ay iba-iba. Don't spiral on this alone, ask your doctor directly sa next visit or call them kung gusto mo ng peace of mind ngayon na. They've seen thousands of pregnancies at alam nila kung ano ang reassuring.