Please say this is normal im terrified

15 weeks pregnant due December 19th with baby number 6 this pregnancy is different so I don't feel a connection I don't feel like I'm pregnant heartbeat heartbeat twice which is a good thing and I was happy but other than that it says I can't feel yet I'm worried so worried and I feel like I won't get connected to it until I start to feel it moving for whatever reason although this is my baby number 6 I'm just want to know if this is normal I'm in pain and I feel like I'm so worried something would happen to baby that I just can't love it yet I don't know if it's normal but it's really put it into my pregnancy help me please