Hindi ka nag-iisa mama! One of my mum friends' lo didn't walk until almost 18 months, pero ngayon 3 years old na, tumatakbo na parang buwis mabuhay, haha. Pero para sa peace of mind mo talaga, better check with your pedia, walang masama sa pag-confirm lang, kasi bawat bata may sariling timeline, pero mas okay kung makakuha ka ng professional assessment to rule out anything.