study released on thursday by the centers for disease control and prevention found that about 30 percent of women who 'd had a child became pregnant again within 18 months .
experts say mothers should wait at least 18 months to give their body time to recover and increase the chances the next child is full-term and healthy that for u.s. moms , the typical time between pregnancies is about 2 1/2 years but nearly a third of women space their children too close that