I just left my Dr’s appointment and the Dr told me my baby is fine, heartbeat is 157 which is great. What’s concerning me is, she said there’s blood in my sac I believe but the blood is old and it’s in the process of coming out which it is now. She told me she want me to come back in for a checkup in 2 weeks to make sure my baby is still growing and healthy. Should I be concerned? I am exactly 8 weeks and 2 days.