Britney Spears is reportedly so worried about her parenting skills she is moving back in with her mother.The singer is said to be "nervous" around nine-month-old Sean Preston after the tot had a string of accidents and feels her mother Lynne - who lives in Kentwood, Louisiana - will be able to help her look after her son as she prepares to give birth to her second child in September.It is believed Britney intends to bring husband Kevin Federline back home with her, and is allegedly renovating her mothers property to make room for their stay.Earlier this year, Sean Preston was rushed to hospital with a fractured skull after accidentally falling out of his highchair.After the incident, Britney was visited by child welfare officers who decided the young mother was not to blame for the accident.Shortly his fall, the 24-year-old pop star came close to dropping Sean as she tried to evade the paparazzi as she left her car.The 'Toxic' singer has also come under fire for driving with her son on her lap instead of securing him in a car seat.

Tagged in Britney Spears