6 Weeks and scared

Mina
So, I am about 6 weeks right now. I am scared because my symptoms are decreasing a bit and I only had really the sore boobs to begin with. I got curious and took another test, and the line is getting lighter! I've recently been under massive amounts of stress from work and family. My first ultrasound was January 23rd, my next appointment is February 10th. Has anyone else gone through this and come out ok and still had their baby? Or is anyone going through the same thing?