article_snippet.sent: It was the first such report by the CDC so researchers don't know if pregnancy spacing has changed over time.
article_snippet.sent: About half fell in the 18 months to 5 year range.
article_snippet.sent: About 20 percent had babies more than 5 years apart.
article_snippet.sent: The older the mom was, the longer the spacing between a birth and the mom next pregnancy.
article_snippet.sent: Of course, miscarriages, illnesses or other factors can affect a couple's plans.