39 weeks baby less energy!!!!

Milcah

Hi ladies so I noticed two days ago my baby’s feral movement decrease I decided to go hospital today they monitored him and did a ultrasound then the doctor said his moving but he seems to lack abit energy so they left me longer on the monitor and the monitor kept a showing his movement it fine and the ultrasound it fine but they want me to go back again tomorrow to be monitored some more I’m very worrried. What can I do to boost up his energy this is my rainbow baby 🙏🏽🙏🏽