A court in Khartoum, the national capital, has also sentenced Mariam Yahya Ibrahim Ishag to 100 lashes for committing adultery by marrying a Christian, something prohibited for Muslim women to do in Sudan, making the marriage void.

The court has given the 27-year-old woman, who is 8-months pregnant with her second child, time until Thursday to abandon her Christian faith or face the death sentence, WorldWatch Monitor reported.

Ibrahim, who was born to a Muslim father, received her death sentence on May 11.

Despite her claimed faith in Jesus Christ, Sudanese authorities are claiming that she is a Muslim by virtue of the fact that she was born in Sudan.

Ibrahim’s case was the first of its kind reported from Sudan, the Reuters reported. A final ruling will be announced on Thursday.

The human rights group, Amnesty International, said Ibrahim was raised as an Orthodox Christian, her mother’s religion, because her Muslim father was absent.

Sudanese rights activists sharply condemned the accusations and called on the Sudanese government to respect freedom of faith.

“The details of this case expose the regime’s blatant interference in the personal life of Sudanese citizens,” Sudan Change Now Movement, a youth group, said in a statement.

Western embassies in Khartoum also expressed “deep concern” over the case, Al Jazeera reported.

“We call upon the government of Sudan to respect the right to freedom of religion, including one’s right to change one’s faith or beliefs,” the embassies of the United States, Canada, the United Kingdom and the Netherlands said in a joint statement.

The embassies urged Sudanese legal authorities “to approach Ms Meriam’s case with justice and compassion that is in keeping with the values of the Sudanese people.” Ahmed Bilal Osman, Sudan’s Information minister, justified the sentence saying: “It’s not only Sudan. In Saudi Arabia, in all the Muslim countries, it is not allowed at all for a Muslim to change his religion.”

According to Justice Center Sudan, Ibrahim was initially arrested and released on bail under suspicion of committing adultery in September 2013.

Her brother lodged the criminal complaint against her, claiming that she was Muslim and therefore illegally cohabiting with a Christian man. It was later established that Ibrahim and her partner were married, in a church in 2012, and that they even had a 20-month-old son together.

On May 11 the Criminal Court in Al-Haj Yousef (an area where many Christians live in Khartoum) convicted her, after declaring her church marriage invalid on account of her Muslim faith and upbringing.

The evidence used in court was based on a number of her family members’ accounts.

The penalty for adultery under Article 146 of the Sudanese Penal Code is 100 lashes for offenders who are not married.

Ibrahim was raised as an Orthodox Christian in a small town located in Western Sudan. A graduate of Khartoum University, she was a practicing medical doctor when she married Daniel Wani, a South Sudanese Christian with US citizenship.

The adultery case against her husband was dropped on account of his undisputed Christian faith. The court also confirmed that he had married Ibrahim in a church.