This paper evaluates the effect of implementing nighttime driving curfews and passenger restrictions mandated by graduated driver licensing (GDL) on teen fertility. Both components of GDL potentially restrict the freedom and mobility of minor drivers by requiring adult supervision, and therefore reduces opportunities to become pregnant. Using birth data from the National Vital Statistics (NVSS) and a triple differences approach, I find that the implementation of "tough" GDL decreased fertility by 3-4% among mothers between the ages of 16 and 18. This effect is driven by the states that require driving curfews for at least a year before teenagers can obtain their unrestricted drivers license.