6week ultrasound

Anyone else ever go in for 6w1d ultrasound and have a empty sac?! Ultrasound tech offered her condolences but the doctor then said “were not there yet, so don’t go there yet” as I sat there in tears. I go back for another scan in 4 days...feeling SO uneasy and so scared. We’ve been trying for a while and I just had my HSG last month.