6w1d question today.. helpppp


I had to go to er last night due to an allergic reaction to the lovenox shot. Anyhow they did an ultrasound and found a yolk sac but couldnt find a fetal pole. ? My gest sac is measuring 6w5d .is that something is should be concerned about ? My hcg levals are above 30k .. I called my REI dr today waiting for a phone call back. I go friday to get another ultrasound. Pls hellppp