On Tuesday, Ohio's legislature passed a bill that, if signed into law by Governor John Kasich, would dramatically limit women's reproductive rights in the state.
The so-called "heartbeat bill" would ban doctors from performing legal abortions on women with "a detectable fetal heartbeat", even in cases where pregnancy results from rape or incest.
Below are the key biological stages of pregnancy as they relate to a developing baby, including when its heartbeat is first detectable.
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