Early pregnancy test paper if the deepening of the slow, in the clinical does not necessarily mean that the embryo is not well developed, for example, in the beginning of menopause, the body’s hCG concentration is relatively low, so the test paper may deepen will be relatively slow. With the further progress of pregnancy, the hCG concentration in the body is gradually rising, which will make the test paper gradually deepen in color, so it is recommended that clinically it is best to draw blood to check the blood hCG to determine the development of the embryo, for example, every other day to draw blood to check the blood hCG, if the development of the embryo is normal, the blood hCG value will be doubled in the clinic. And it is also clinically recommended that in the absence of any symptoms, ultrasound can be done after 45 days of menopause, the main purpose is to understand whether the size of the gestational sac and the number of days of menopause are in line with each other, and then we will know whether the embryo’s current development is normal or not.