Breakfast or lunch?

Breakfast or lunch?
It was Sunday. I never get up early on Sundays. I sometimes stay in bed until lunchtime. Last Sunday I got up very late. I looked out of the window. It was dark outside.‘What a day!' I thought.‘It's raining again.' Just then, the telephone rang. It was my aunt Lucy.‘I've just arrived by train,' she said.‘I'm coming to see you.'‘But I'm still having breakfast,' I said.‘What are you doing?' she asked.‘I'm having breakfast,' I repeated.‘Dear me,' she said.‘Do you always get up so late? It's one o'clock!'