Öberg was born in Stockholm to a charwoman and a carpenter.
Due to her family's poverty, she was unable to attend school as a child.
[1] Her poems were read at the salon of a rich woman, for whom her mother worked, which made her discovered.
She was placed in a pension by count Gustaf af Wetterstedt, and was able to attend school.
Between 1834 and 1841, she published the collection Lyriska dikter (Lyrical Poems) which was given the assessment: They [her poems] give witness of a deep and warm emotion, which in a simple, innocent and touching way reminds of the tones from the great poets, from which she was inspired.