I Don't Know Lyrics

Lyric discussion by Jimmy321 

Cover art for I Don't Know lyrics by Lisa Hannigan

Maybe I'm way off, but I often wonder if she's pregnant or imagining a future child (I mean in the song, I have no interest in/knowledge of her personal life. I think the music video really lends itself to this theory. Some lyrics, like 'I don't know what you smoke', seem out of place here, but she seems to be imagining someone at different stages of life, not just one stage. What yas think?