From finding out I'm pregnant to feeling alone

So, I found out I was pregnant 2 days ago! My SO lives over 2 hours away by train, I found out I was pregnant by myself and had to tell him over the phone which I really didn't want to do, I know we've been processing the emotions of a pregnancy, we talk a couple times a day as he likes to check up, make sure there is nothing I want to talk about as I struggle to come to terms with it all, I'm also paranoid, my friend had a silent miscarriage 2 years ago, there's been a stillbirth which of course I'm like what if all this happens to me, what if it was a false positive, I've used 3 tests and all are positive but I can't help thinking like this and what if it's not really there and I'm imagining it all! I even did a clear blue how many weeks? It was 3+ so means I'm already 5 plus as of course you add the 2 weeks on to it, it's been almost 7 weeks since the last day of my period , I'm just paranoid and I'm just feeling so alone and what if I've just made it all up? I know I haven't but I can't help but think it, I'm afraid to tell anyone apart from the father and my mother, I don't ever want to tell anyone incase something happens, I've never felt like this before, I've got a 11 and 13 year old and I was never like this, guess I just needed to get it off my chest and to know that I'm not going crazy! 🥺