The woman, aged 30, went to the emergency ward at the Gubbio-Gualdo Tadino hospital complaining of back pain, not realizing that it was in fact a symptom of her pregnancy, local daily Perugia Today reported.
An examination by a doctor soon confirmed the pregnancy and within a few hours of the discovery, the woman went into labour.
Both mother and baby are reportedly doing well but the baby is being monitored in the neonatal ward at the hospital as a precaution.
Unsurprisingly, the stunned parents have yet to come up with a name for the unexpected arrival.
Although the phenomenon of unknown pregnancy may seem unbelievable, it is not as rare as one might think.
A Serbian study estimates that one out of every 7,225 pregnancies is unknown to the mother until the moment of delivery.
In February, The Local France reported about a French woman who had no idea she was pregnant until her baby literally popped out while she was on holiday at a ski resort in the Alps.
The mother was at the Val Thorens ski resort on holidays with her family when she rushed to the bathroom one morning because she was not feeling well. However she soon realized it wasn’t a case of stomach flu.
The woman was on birth control and claimed she had no idea she was pregnant. Incredibly within 15 minutes of the first pain she had given birth to a healthy baby girl, French paper Dauphiné Liberé reported.