Hello everyone! The term is 40.2. Yesterday I had an ultrasound, they …

Hello everyone! The term is 40.2. Yesterday I had an ultrasound, they said that the cervix doesn't shorten, as it was 4cm and still is, and the placenta has already served its purpose ? The doctor asked if I had been professionally involved in sports (no). What was the question about? I worked throughout the pregnancy, walked a lot, there were four flights by plane, could this be related? I am very worried, I want to hold the baby already and give birth independently, without intervention.