Feeling baby and now not??

🙃

This is my first baby. Im 21 yrs old... Around 11 weeks I could just feel exactly where she was. I’d find the heartbeat with in 3 seconds. I just knew where she was I don’t know how to describe it. Then when I turned 15 weeks I have no idea where she is anymore?? I try finding the heartbeat and it takes me a minute.. Im now 16 weeks and still just feel empty almost. Can’t feel anything and now Im worried. At 13 weeks I had an ultrasound and she was flopping around like a fish on dry land and my 16 week ultrasound she was BARELY moving at all. Im just worried idk?? Anyone else? 🥺🥺🥺

Adding picture of my 16 week bump