A Cairns couple charged over a home abortion have been found not guilty.

A Cairns District Court jury took less than an hour to find Tegan Simone Leach, 21, and her partner Sergie Brennan not guilty of charges of procuring an abortion and supplying drugs to procure an abortion following a three-day trial.

The couple were charged after police found empty blister packets of abortion drugs RU486 and Misoprostol during a search of their home on an unrelated matter in February last year.

They admitted in police interviews that Ms Leach took the pills, imported by Mr Brennan's family in the Ukraine, because they were not ready to have a child.

Under Queensland law, abortion is illegal except to protect the mother's life or her physical or mental wellbeing.