Baby movements

I’m 28 weeks and have actively been feeling our baby girl move. I felt movement this morning but have only felt her once this evening. I have a weird pain in the center of my abdomen about 2-3inches below my boobs and 2-3 inches above my belly button. It’s kind of just like a tightness but also achey. Suggestions to try to get her to move some? Or should I be worried?