Bleeding at 6 weeks

Hello All ,

I’m 6 weeks pregnant and today eve I found out light bleeding ( bright red) on my underwear. It was neither spotting nor heavy bleeding. No cramps. I rushed to emergency where they did blood work and ultrasound. Hcg came 47000 and ultrasound showed gestational sac of 11mm but nothing inside it.

The doc suggested to come again for blood work in 2 days to verify if hcg level goes up and that’d confirm if I’m still pregnant.

Really tensed!! Anyone had similar experience??