Is my baby okay inside the womb?

I am 39 weeks pregnant. About at 30 weeks is when fetal movement decreased tremendously then it did before. I have gone to the hospital because of this. I have always been told at appointments that the baby is fine and that the baby has less room and my placenta is in the front.

Every week movement has become very little to feeling no movement. Even if she does move it’s not big at all for me to even notice. Could there be something possibly wrong with the baby that they don’t know? Or has any other women experienced this as well. I’m just at the end of my pregnancy and I just don’t feel pregnant at all or like she’s going to come out.