Stress comparing

So, according to the app I should almost be 6 weeks. I was feeling sick last week, went to the doctor, tested, and confirmed pregnancy. They did a sonogram even though I was apprehensive because it is really early. My uterine line is thickened, baby wasn't in tubes, but we couldn't see a sac. Ever since then, I have been paranoid. Google has become my enemy. I read everyone's posts, and I know I'm lucky my doctor even looked so early. Most wait 8-11 weeks. But I feel angry that they looked, it has made me feel like something is wrong. I have soreness, crazy dreams, fatigue, testing positive (urine no blood samples yet). Everything seems fine, but because we had MC in the past, I find it extremely hard to calm my nerves and not worry. Help me stop going crazy. I'm thinking the app is just off, and maybe we aren't that far along. I know every pregnancy is different, but it is hard not to compare when using these platforms. Maybe I just needed to get this out there, so I know someone feels like me also. ❤