Scared

According to this app, I’m 7 weeks and 2 days. But I’m absolutely terrified of having a miscarriage. Im scared because I have hardly any symptoms at all except EXTREME fatigue and sore nipples. Last week I had a TERRIBLE cramp and had to sit down for a minute but I haven’t had any bleeding or any bad cramps like that anymore (other than gas) lmao. But seriously, am I being paranoid? Has my risk gone down at least a little bit since I’m 7 weeks? I just need some help and advice please!