A 27-year-old mother admitted driving over the limit after drinking wine with friends.
Amy Gordon, of Paddington Way, Morton, denied drink driving along Harrowby Road, Grantham, on July 25.
Prosecutor Shelley Wilson said that on the day in question police received information from a member of the public that the driver of a Proton car might be drunk.
The vehicle was seen at 2.45am and stopped, and the driver, Gordon, failed a roadside breathalyser test and was arrested.
At Grantham Police Station Gordon was given the opportunity to take a blood test, and was slightly over the drink drive limit, having 93 milligrammes of alcohol in 100 millilitres of blood.
Jane Bauer, defending, said that this offence was committed shortly after the relationship between Gordon and her partner broke down.
She informed the court that Gordon has four-year-old twins and a three-month-old baby, and was also in the midst of losing her rented home.
It was for this reason and due to it being near to Gordon’s birthday that she went to see friends with whom she shared wine.
Mrs Bauer said her client mistakenly thought she was okay to drive afterwards.
Magistrates banned Gordon from driving for 12 months with the oppportunity to reduce this by three months through completion of a drink driver’s rehabilitation course.
She must also pay a fine of £100, prosecution costs of £85 and a victim surcharge of £20.