Aiyoh, honestly this is something better to check with your doctor or confinement lady because timing and amount really depends on your individual health condition lah, some mummies start from 7 months, some later, and it really varies! A few of my mum friends swear by red dates jujube soup during third trimester, tapi semua orang consulted their gynae first to make sure it's okay for them, especially if ada any health issues or they're on certain medications. Your doctor will know best lah, and they might have other suggestions too that suit you specifically. Good luck with your pregnancy!