Hazrat Umme Ummaarah (ra) first got married to her cousin, Zaid Bin Aasim, with whom she had two sons, Abdullah (ra) and Habeeb (ra). After Zaid’s demise, she got remarried to Ghaziyyah Ibn Amr (ra).1 This marriage resulted in two children, Tameem and Khaulah. Hazrat Umme Ummaarah (ra) accepted Islam, at the time of her second marriage.
1 At-Tabqaatul-Kubraa by Ibn Sa‘d, Vol. 8, p. 440, ‘And from among the Women of Bani an-Najaar: Umm-e-Ummaarah’, Daaru Ahyaa’it-Turath Press, Beirut, 1996. Al-Isaabah fi Tameezis-Sahaabah by Imam Ahmad ibn Ali ibn Hajar al-Asqalaani, al-juz’uth-thaamin, p. 441, Ummu Ummaarah, Published by Daarul-Kutub al-Ilmiyyah, Beirut, 2005