No fetal pole with yolk sac at 7 week ultrasound

I did my first ultrasound at 7 week based on LMP. No fetal pole can be seen. Only gestational sac and yolk sac can be seen. Did blood test to check if my HCG level is doubling (supposed to double) and seeing gynae in 5 days time... Just want to ask if anyone been through similar experience? Care to share? Hoping for the best 🌼