The softness of the breasts in the seventh week of pregnancy may be caused by the hormonal effects in the body, but also does not exclude the miscarriage aura, in order to be safe it is best to timely ultrasound examination, as long as the baby development is normal do not worry. At the same time, it is recommended to draw blood to check the HCG in the blood, if the HCG value is low, it is easy to cause miscarriage, and it is necessary to supplement progesterone under the guidance of the doctor. It is best to relax during pregnancy, do not give yourself too much heart pressure, it is recommended that regular maternity checks can be, eat more fresh vegetables, fruits can prevent constipation, do not eat spicy and stimulating food, can not eat cinnamon, hawthorn, crab, barley and other foods that are prone to miscarriage, also can not have intercourse during pregnancy, which can also cause miscarriage.