Symptoms disappearing

It seems like my symptoms are disappearing.. I didn’t have much.. just always hungry ,and tired.. always going to the bathroom. It’s like I don’t feel pregnant.. went in for a scan thinking I was 6w1d and turns out I was measuring 5w6d.. only yolk sac visible. No fetal pole.. I go in for another scan on the 3rd of Mar.. but I’m so nervous that baby isn’t growing and I’m losing my symptoms.. they don’t even know my due date yet .. I’m trying not to lose hope but I’m almost there 😩