Girls, good evening everyone ? I had an ultrasound today, and somethi…

Girls, good evening everyone ? I had an ultrasound today, and something is scaring me... (The umbilical cord in the projection of the fetus's neck) It turns out it got tangled? Is it dangerous? He's too active for me, I'm constantly afraid that he will get tangled badly.. ? And in the previous ultrasound there was nothing like this...no knots or anything.