Ashley contracted rubella while she was pregnant. her unborn child is most likely to be affected if it is in the of development.

I believe the answer is: The embryonic

The embryonic development occurs between the period of 1 - 8 weeks after the fertilization happened. During this process, the organs of the fetus still hasn't fully formed. Since rubella affected people's organ, unborn child under this stage would most likely not be affected by it.

the embryonic

Explanation:

Rubella virus infection during pregnancy, especially in the first trimester, may compromise the embryonic development of the fetus and cause miscarriage, fetal death and congenital anomalies, which characterize Congenital Rubella Syndrome (CRS). Clinical manifestations of CRS may be transient (purpura, thrombocytopenia, hepatosplenomegaly, jaundice, meningoencephalitis, radiolucent osteopathy), permanent (hearing impairment, cardiac malformations, cataract, glaucoma, retinopathy pigmentaris), or late (developmental delay, diabetes mellitus).