In this paper I examine the recent, vigorously touted “preconception” care movement in the United States. With the 2009 publication of What to Expect Before You Are Expecting, and the Center for Disease Control’s 2006 guidelines urging that all primary care for women of reproductive age be treated as “preconception” care, the time when women’s bodies are interpreted as maternal bodies is extended backwards to before conception even occurs – and indeed, often to before women are even planning to become pregnant. The new CDC guidelines explicitly warn that “the average woman of reproductive age encounters the medical system 3.8 times per year and any of these occasions may be a woman’s last before she becomes pregnant.”