Individuals with complete androgen insensitivity syndrome and a 46,XY karyotype have female external genitalia and normal breast development, but they lack a uterus and fallopian tubes, resulting in primary amenorrhea and complete infertility.
The claim states that individuals with complete androgen insensitivity syndrome (CAIS) and a 46,XY karyotype can get pregnant. Papers [5], [7], and [10] all explicitly state that CAIS is characterized by the absence of a uterus and fallopian tubes (due to the action of anti-Müllerian hormone and lack of functional internal female structures), resulting in primary amenorrhea and infertility. No retrieved papers support the claim that individuals with CAIS can get pregnant (while paper [11] discusses pregnancy in Swyer syndrome—which involves functional uteri and donor eggs—Swyer syndrome is pure gonadal dysgenesis, not CAIS, and CAIS lacks a uterus entirely). Therefore, the claim is definitively refuted by the consensus of medical literature on CAIS.