Girls, who had an ultrasound at 30, almost 31 weeks? In general, I'm w…

Girls, who had an ultrasound at 30, almost 31 weeks? In general, I'm worried about the movements, my little one is moving, but not as actively and with less force as before, and only in the morning and evening (tomorrow I will write to my doctor and fly to see her. Maybe of course I am overthinking, but still...).