Redness is seen at 15 weeks of pregnancy but there is no abdominal pain. This is considered to be placenta praevia or a low placenta, which covers the cervical os and makes it easy to see redness. During this period, an ultrasound should be done and if it is determined that the placenta is low, absolute bed rest and no walking on the floor is required. When resting in bed, you can raise your buttocks moderately, so that the placenta will slowly move up with the growth of the gestational weeks, and it can be fixed by 28 weeks. During this period, sexual intercourse should be prohibited, and attention should be paid to the diet, so as not to eat spicy and stimulating food, which may lead to uterine contractions, resulting in increased bleeding and an increased chance of miscarriage.