Fiennes flight attendant: 'I could be pregnant'

The flight attendant who earlier this month confessed to having sex with actor Ralph Fiennes in an aircraft toilet is worried she may be pregnant.

Lisa Robertson admits she and Fiennes didn't use protection when they romped in a Qantas Airways lavatory.

When asked if she could be pregnant, Robertson replied, "Perhaps, yeah."

However, the 38-year-old added she would "probably have a nervous breakdown" if she discovered she was expecting Fiennes' child.

Robertson was last week sacked by Australian national airline Qantas as a result of the incident.