A 31-year-old pregnant Boyertown woman and her 9-year-old son drowned after the car they were in was swept away by floodwaters into the Manatawny Creek on Thursday afternoon near Pine Forge, authorities said. The incident occurred near Ironstone Recreation Area in Douglass (Berks) Township during flash flooding that hit eastern Berks and the Tri-County area. Douglass Township Police Chief John Dzurek confirmed late Thursday night that the mother and son were found inside their Mazda 3 along the embankment on the north side of the Manatawny Creek about a half-mile away from their last known position in the 100 block of Pine Forge Road. Numerous water rescue crews from the region assisted in bringing the victims to shore. Workers placed the bodies on rescue stretchers that were hoisted up a steep embankment.