Approximately 6 million women in the U.S. become pregnant every year. Over 4 million give birth. Over 1 million babies annually are born with low birth weights or prematurely - phenomena, statistically linked to both lack of "adequate" prenatal care and to worsened health outcomes (www.americanpregnancy.org). Additionally, maternity "care" in the U.S. has been called a "human rights failure" (Bingham, Strauss, Coeytaux, 2011, p. 189), referring to the trend of increasing maternal mortality, despite the fact that child-birth related expenses in the U.S. are the highest healthcare expense in the country and are also much higher compared to other "industrialized" countries. In this context, the dissertation presented here looks at the construction and negotiation of pregnancy and prenatal care knowledge. Fusing performative, narrative, autoethnographic, and dialogic methodologies, the text looks at and performs interpersonal interactions occurring in varying contexts of pregnancy. The dissertation puts different voices and cultural knowledges in dialogue with one another in order to explore the communicative construction of dominant/authoritative knowledge (Jordan, 1997) and the subjugation of other knowledge streams. I look at health and health care as everyday phenomena, not limited to clinical contexts. Finally, based on this consideration, I propose a relational model of health communication.