Unmarried woman getting pregnant through artificial insemination

A Muslim sister in a certain Islamic community got pregnant. The Islamic leaders decided to discipline her since she was not married. When the elders of the Community met her, she told them that she has stayed in the religion for years and no one is marrying her and she is getting to the age where she can't get pregnant if married. So she went and did artificial insemination since she wants a child. She provided the medical documents that showed that she has done the artificial insemination. The sister is pregnant without committing fornication nor adultery. Is she sinful?