Hate that I can't feel him ☹️

I am 16 + 4, which I know is still considered early for movement, but I am getting so anxious that I can't feel my little baby yet ☹️ I see a lot of posts on here from FTMs saying they feel it at 13 and 14 weeks, and I'm really scared that something is wrong 😔 I don't even know what I'm supposed to feel. I have a doppler but I try to refrain from using it- I feel like his heartbeat sounds different each time and am convinced half the time it's not even his. I'm just a mess 😔 I'm so anxious and just want to be able to feel his movements