Frequency, speed and intensity of fetal movement
The frequency, speed and intensity of fetal movement tell us the safety of the fetus. Generally speaking, fetal movement should be no less than 3~5 times in 1 hour and more than 30~40 times in 12 hour. Of course, each fetus is unique, and some small ones may move about 12 hours 100 times. As long as the fetal movement is regular, rhythmic and doesn't change much, it is that the fetus is telling you: "I'm fine, mom, don't worry!"
Fetal movement is normal and the fetus is healthy
Normal fetal movement means that the placenta functions well and the fetus gets enough oxygen and nutrition. This means that the fetus is happy and full of vitality in the womb! So, when you feel those little kicks and tumbling, you might as well calm down and have a warm interaction with your baby!