Unsure feeling

Is it just me cause I’m a overthinker but i don’t feel pregnant if that makes sense. I usually get cramps and stuff when I eat and when j lay down for the night so I usually believe that’s him moving but for the past 3-4 days I haven’t felt it and it’s scaring me. I immediately think the worse. I don’t really have any other symptoms besides those. Ill be 5 months next Sunday. I just want to make sure he still has a heartbeat and very active like he usually is.