Intercourse with different men/women?

I would like to know what her credentials are to make these statements about the reproductive system. Being an immunology grad student, most of what she said is very inaccurate concerning an autoimmune reaction with the sperm. An autoimmune response is against ourselves, not against invaders, which is what sperm would be. And as for fetal DNA, this is all eliminated from the mother's body once she gives birth to the child.
I would like to know where she received her information pertaining to this video, because this is research I could not find or have heard of.