Freaking myself out:/


So my best friend found out she was pregnant last week. She was about 4-5 weeks. She found out Monday she had a miscarriage. Now, I’m freaking out at 8w 4d thinking maybe I have or will too. My morning sickness has all of a sudden subsided. I tried using a fetal heart Doppler but I can tell if what I’m hearing is the baby or just my heart beat. I know mentally I’m probably just freaking myself out.... but I can’t help it!! Does anyone else have this fear?