What Causes Fluttering And Kicking Sensation In Upper Right Abdomen?

I am 25 years old take birth faithfully daily and have I have 2 kids. Recently I have been having a flutters and kicking sensations in my right upper stomach under my ribs feels like soft baby kicks with a pulsation to it Im not pregnant and would know those motions are more lower stomach in early stages. What do think this could be? Gas I have ruled out by balancing diet and my gas pas are lower stomach and a different feeling.