Hi mama! Yan actually normal lang, some babies do tend to move more on one side, especially if they're positioned that way sa womb or if that's where their back is facing, kaya mas nararamdaman mo ang kicks doon. A few of my mum friends noticed the same thing at that stage, and it usually just means your baby found a comfy spot! But since you want to be extra sure, it's always good to mention it sa OB mo sa next checkup para masiguro lang na lahat okay, walang problema talaga usually, pero peace of mind is always worth it.