normal lang po ba na kahit 18 weeks na wala padin nararamdamang movement from baby sa tummy?

FTM here, 19 weeks ko palang naramdaman yung pitik pero like nothing, now 22 weeks pakonti konti pa din and inconsistent pero normal daw as per my OB strong heartbeat naman si baby, check pa bka anterior placenta ako on my 24 weeks