Octocin does not increase the size of the fetus when taken. Octocin is a nutritional supplement for pregnancy that is used to replenish the body with multivitamins, and the nutrient content varies according to the month of pregnancy. After pregnancy, women should stay relaxed, have reasonable and diversified nutrition, and try to eat as much as possible like eggs, meat, fish, shrimp, ribs and fresh vegetables and fruits to meet the body’s needs for protein, vitamins, minerals and trace elements, and should not rely on taking health supplements to promote the growth and development of the fetus. During pregnancy, you should live in a clean air environment and try to avoid bacteria, viruses, radiation and other adverse effects to ensure the growth and development of the fetus. After pregnancy, you should also follow the doctor’s instructions and have regular obstetric examinations to observe the growth and development of the fetus.