33wks now.is it common to have pain at the side of stomach...just 1 spot...baby still active as norm

Oh congrats on reaching 33 weeks, you are almost there! Single spot pain on the side can happen as baby grows and puts pressure on different areas, or it could even be a stitch from baby's position or stretching ligaments. Since you are not sure what it is and it is in one specific spot, it would be good to get it checked by your gynae or at the polyclinic just to be safe, especially since you are in the third trimester. Good that baby is still active as usual, that is a reassuring sign, but do not wait too long if the pain gets stronger or more frequent.