"When are you gonna have another child?"

My husband and i have been TTC #2since our 15 month old was 3 months old. Today we decided to go to the Chinese buffet. We go there often and the clerk always is so nice and recognises us as soon as we walk in. Today as we were leaving he asked me. When are yall gonna have anymore kids? You do t want anymore? And i was like idk...didnt really know what to say. Then he continued and said. "What? Your husband thing doesn't work?" and i just stood there....not knowing what to say.... Im just really surprised and kinda offended. Anybody else get this???