Try here…
In the case of the words in the “Credo” the rubric of the Order of Mass also reads: “All bow.” It is well to remember that at the Mass of the Christmas Vigil, the Mass at Midnight, the Mass at Dawn, and the Mass during the Day, there is genuflection at the words “And he became man” (see MR pp. 153, 155, 156, 157); the same holds for Mass on the solemnity of the Annunciation of Our Lord (see MR p. 538)
From…
ourladyswarriors.org/liturgy/girmnote1975.htm
You may want to check with your Diocese to see if this holds for you. This is an American website.