Jafari met her husband Ibrahim in 1998 and they have three children. She discovered she was pregnant with her third child a few days after learning that she herself had cancer. Her consultant surgeon at the Queen Alexandra Hospital in Portsmouth told her it would be possible to keep the baby. Jafari was able to have chemotherapy while pregnant and said they "want baby Sina to be a message of hope to other families". After an anxious and exhausting pregnancy, baby Sina safely arrived.