Hello, Thanks for sharing your health concern with us. The length of the cervix should not pose a problem; nor is the location of the placenta and the grade. The subplacental hemorrhage, however, is of significance and has to be monitored carefully. If there is no increase or if regression is observed, the prognosis for the pregnancy is good. If the hemorrhage increases, active measures are needed. Absolute bed rest, avoidance of sexual intercourse, appropriate medication, regular monitoring and a healthy diet are necessary. Wish you safe motherhood.