Went to the OB today, baby boys heart rate is 153 and I’ll be 29 weeks Friday! But I’m already…

Went to the OB today, baby boys heart rate is 153 and I’ll be 29 weeks Friday! But I’m already measuring at 29 weeks! Go tomorrow to my heart doctors, than Friday I go to another place that deals with my OB to discuss more about my antibodies and the baby and to do another ultrasound on baby’s blood flow to the brain and umbilical cord