Ultrasound stress

momma • Angel mama to my son 💗 earth mama to my daughter

I got an ultrasound yesterday at 6w1d according to my LMP. All we saw was a gestational sac. No embryo, no fetal pole, just an empty sac. Has this ever happened to anyone else? They said miscarriage is possible. I go back in a week for another ultrasound. I cant stop stressing about it. Any input/advice is appreciated