No fetal pole

Alexis

According to my lmp I am 5 weeks and 6 days pregnant. I had a vaginal ultrasound yesterday due to spotting bright red blood since week 4. My HCG has been tripling every 2 days. Anyway, when I had my U/S the doctor saw a gestational sac as well as the yolk sac but no fetal pole. My HCG was 1350. Should I be concerned?? I’ve had 2 MCs in the past year and am so worried! When did you guys see a heartbeat?