Nurse midwife Danielle Kraessig seen meeting with Yakini Branch at the PCC South Family Health Center in Berwyn, Ill., in early 2013. While the federal law requires insurers to cover maternity services, birthing centers and midwifery services aren't always included. M. Spencer Green/AP hide caption

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The new test scans a mother's blood for bits of a fetus's DNA. iStockphoto hide caption

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Up till now, all babies have had two genetic parents. That could soon change. Klöpper & Eisenschmidt GbR/iStockphoto hide caption

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Governor Deval Patrick of Massachusetts signed the law enacting the state's latest phase of health care on August 6, 2012. Eric Haynes/Governor Deval Patrick's Office hide caption

itoggle caption Eric Haynes/Governor Deval Patrick's Office

Exercise helps lower stroke risk, but birth control pills and pregnancy can be problematic for younger women. iStockphoto hide caption

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