The baby's behavior has changed for two days now, he's become quiet, e…

The baby's behavior has changed for two days now, he's become quiet, everything was fine in all parameters two weeks ago and yesterday on the ultrasound, the baby is growing and I can't get used to constantly something changing there with him, and generally the baby is very smooth, doesn't fuss, extremely rarely, but something again I will give him 100% attention and don't understand at all that I feel movements at 34-35 weeks only once every two hours approximately.