IMPORTANT QUESTION

By my last period (dec 15th 2019) my app is saying i should be 8 weeks pregnant. I had my first ultrasound today, and my sac is there and yolk, just no baby. My doctor seems to think I’m just early and my dates are off even thought I’ve tracked my dates. Has anyone been through this? I go back in 2 weeks and they should call me tomorrow to see what my HCG levels are at, i did the blood work in the office today.

Please please please let me know. Thank you.