TWO empty sacs now...

Mandi
At 7/8 weeks the doctor was only seeing an empty sac. Did betas and they came back lower so she thought I might be earlier. After the second ultrasound she informed me I would be miscarrying and did more betas. Well they went up.. So I went for another ultrasound and there are now TWO empty sacs. 
I'm such an emotional wreck and don't even know what to think... Doctor doesn't know what to think either!!!