Hey its okay to feel that way. Ur just craving the confirmation by actually being able to see the baby. It is there it has a heartbeat. you already told us that.. so therefore you shouldn't stress too much over it. Wait until your scan and everything will be different. Its magical once you actually see them

My dr never gave me a blood HCG test to confirm pregnancy. I put on only 1kg in the first 14 weeks, my belly didn't really grow much at all. And until my first scan at 13 weeks I was also feeling very much like yourself. I was worried something was wrong with the baby. Or that maybe i wasn't really pregnant.... But once I saw the baby that all changed. It still doesn't seem real, and probably won't until i'm holding him in my arms. But I have heard his heartbeat. I can feel him move all the time now and I know he is real..
It will come soon for you too. Don't try and focus on the movements so much. Your placenta may be positioned at the front, meaning there is more tissue between ur outside tum and bubs, and u may not feel kicks yet.
I have felt my boy kicking since like 15 weeks, but its only really become strong since about 20 weeks. So just be patient The kicks just feel like a little twitch to start with.. and the 'flutter' movement to me is very hard to distinguish between baby and gas..