Best friends tried an old wives' gender reveal involving red cabbage - and were shocked to discover it correctly predicted the sex of their babies.br br Sleep trainer Jemima Rose Nicholls, 27, and Lily Stewart, 27, a nanny, are both due in the last week of November. br br The pair, who have been best pals for over a decade, decided to try the quirky gender test after Jemima’s grandmother suggested it.br br It involves mixing urine with boiled red cabbage to predict the baby's gender.