Is this a maxillary hypoplasia or just a chin retrusion?

It seems I have poor dentofacial growth, and I wonder if it's because the maxilla and mandible are recessed, or if it's because there is a dis-prominent chin. If I stress to put my chin forward, making the bottom teeth row go beyond the front teeth row, it seems to be corrected, so I hypothesise a maxillary retrognathism [needing a bimaxillary advancement surgery].