It is important to consult with your healthcare provider immediately if you are experiencing heavy bleeding and passing big lumps during pregnancy, especially if you have been diagnosed with a perigestational hematoma. While it is possible that the hematoma is releasing, only a medical professional can provide an accurate diagnosis and appropriate guidance. Heavy bleeding during pregnancy can be concerning and may indicate other complications such as a threatened miscarriage or ectopic pregnancy. Your doctor will likely perform an ultrasound to assess the situation and determine the best course of action. It is crucial not to delay seeking medical attention in order to ensure both your health and the well-being of your baby.