Hi, There are a couple of possibilities in your situation; the baby may have descended down, this being your third pregnancy; the cervix may be preparing early; you may be perceiving the fetal movements through the cervix and/or you may have developed some hypertension. Please discuss with your health care provider as threatened preterm labor cannot be taken lightly and needs proper management. You may need blood pressure monitoring, a sonogram and observation. Please take adequate rest, preferably in left lateral position and avoid all forms of stress. Wish you safe motherhood.