Chela- Preg Trimester 3 Combo Pack. Chela-Preg Pre-Natal Trimester 3 Morning Tablets and Evening Capsules is indicated to support foetal and maternal health during the third trimester of pregnancy (27-40 weeks). It supplies 26 micronutrients including maximum DHA-omega 3 for brain growth. Highest calcium supports skeletal growth and mineralisation. Extra vitamin E, vitamin C, choline and zinc support rapid tissue growth, foetal health and improve a safer pregnancy outcome. Maximum iron supports red blood cell formation and greater foetal metabolic demands.