Start and stop labor

Anyone here na may start and stop labor? 38 weeks and 3 days. 36 weeks palang 2cm na ako, ang dami ng lumabas ng mucus plug at bloody show kaso 3cm padin ako as of now. Natry ko na lahat ng exercise at walking pero pag magpapahinga na mawawala na yung sakit ng tsan ko at di na magcocontract again. Any advise mga mamsh?