From the linked article and paper author that’s being referenced: They describe male DNA found in the brains of women in their study as “most likely” from prio

From the linked article and paper author that’s being referenced: They describe male DNA found in the brains of women in their study as “most likely” from prior pregnancy with a male fetus and do not conclude or mention that women store DNA from males acquired through intercourse. “In our study as well as others done prior, we merely speculate the establishment of microchimerism through intercourse,” Chan told Reuters. “That is, the possibility exists but it has not been tested (or proven, as the lay person may say).