Hindi lang ikaw, maraming moms ang nag-worry about this! Pero honestly, the best person to ask is your OB kasi each pregnancy is unique, sometimes it's just how baby is positioned or the placenta, sometimes growth is slower but baby is still perfectly healthy, and sometimes kailangan lang ng closer monitoring. Don't stress too much, but definitely bring this up sa next checkup mo so doctor can assess properly and give you peace of mind!