Flint water: Link to miscarriages?

Has the lead levels in water been responsible for higher level of miscarriages?

Dr. Mona Hanna-Attisha, of Flint's Hurley Medical Center, and the state Department of Health and Human Services confirmed their work researching a link between lead and miscarriages is already underway, but each said it is premature to draw any conclusions.

The Centers for Disease Control and Prevention says too much lead in a pregnant woman's body puts her at risk for miscarriage, as well as increasing the risk of a baby to be born too early or too small.
That's because lead can cross the placental barrier, exposing both mother and unborn child to the toxin.

Article here (via mlive).