Male Jerboas can attract female Jerboas by standing on their tippie toes and batting at the female with their stubby dinosaur hands.
"If the male is found sleeping outside the nestbox he is best moved to another cage as the mother may attack him after giving birth. Gestation is approximately 25 days and litter size is quite small at between 1-5 pups. Pregnancy is not easily to determine due to their small litter size."
Good luck getting Dooby her fresh seeds and greens without leaving the train car.