So confused

Rebeca

I went to my 1st ob appt yesterday and was suppose to be 8 weeks exactly and when they did the u/s I was measuring 6w1d with only gestational sac visible. My mw told me I was either early or will miscarry sometimes soon. I’m trying to stay positive but I’m am 100% certain about my lmp. Just trying to see if anyone had any positive outcomes in the past? I’ve been crying nonstop since yesterday and barely slept all night just thinking about it..