Heavily pregnant Sonari (pictured below) toils under the burning sun in fields dotted with bright yellow melons in Jacobabad, which last month became the hottest city on Earth.
Her 17-year-old neighbour Waderi, who gave birth a few weeks ago, is back working in temperatures that can exceed 50 Celsius (122 Fahrenheit), with her newborn lying on a blanket in the shade nearby so she can feed him when he cries.
"When the heat is coming and we're pregnant, we feel stressed," said Sonari, who is in her mid-20s.
"Most of the time, it ends before it's time to buy more and we must wait," Rubina said as she closely supervised her children and grandchildren sharing a cup of water. "On the hot days with no water, no electricity we wake up and the only thing we do is pray to God."
(Photo Editing Gabrielle Fonseca Johnson; Text Editing Mike Collett-White, Katy Daigle and Pravin Char; Layout Kezia Levitas)