Signs of labor (i.e., signs of labor) are normal and predictable when they occur in the last 3 weeks of pregnancy (beyond 37 weeks), but if they occur 3 weeks before the due date, they should be carefully examined and evaluated. In any case, as soon as signs of labor appear, you should be admitted to the hospital as soon as possible or wait for labor. Redness: When pink or dark red blood mixed with mucus secretions flows out of the vaginal opening, it means that the cervix has begun to thin and the pregnant woman is about to enter labor. Know that the cervix becomes shorter, softer, and thinner before it opens. In this way