On a grimy wall in one room of her home hang proud portraits of some of her children graduating from school, gold tinsel around their necks.
"Mum is overwhelmed, the work is crushing her, we help where we can, like in cooking and washing, but she still carries the whole burden for the family. I feel for her," said her eldest child Ivan Kibuka, 23, who had to drop out of secondary school when the money ran out.
Nabatanzi's desire for a large family has its roots in tragedy.
Three days after she was born, Nabatanzi's mother abandoned the family: her father, the newborn girl and her five siblings.
"She just left us," said Nabatanzi somberly, as some of her ragged children played on the dirt floor while others did chores.
After her father remarried, her stepmother poisoned the five older children with crushed glass mixed in their food. They all died. Nabatanzi escaped because she was visiting a relative, she says.
"I was seven years old then, too young to even understand what death actually meant. I was told by relatives what had happened," she said.
She grew up wanting to have six children to rebuild her shattered family.