If the matter is indeed as mentioned, then her 'Umrah is invalid and this woman is still in Ihram (ritual state for Hajj and 'Umrah). Therefore, she must return to
Makkah and perform the 'Umrah for which she entered into the state of Ihram. Accordingly, her marriage contract is invalid and therefore it must be conducted once again.
If she had engaged in sexual intercourse, her Umrah is void and she must complete it. Afterwards, she must return to the Miqat (site for entering the ritual state for Hajj or 'Umrah) from which she assumed Ihram and enter into Ihram for another Umrah to make up for the void Umrah she previously performed. She must slaughter a sheep in
Makkah that meets the specifications of the Ud-hiyah (sacrificial animal offered by non-pilgrims) and distribute its meat among the poor of
Al-Haram. May Allah grant us success. May Peace and Blessings of Allah be upon our Prophet Muhammad, his family and his Companions.