Pregnant with Rainbow and worried..

So I figured out I was pregnant really early and got confirmation from my dr at 4 weeks!

She said to start progesterone at night and did for 2 days then started to “bleed” dark brown/greyish blood. I let her know and she said to continue, but to also start using progesterone day and night..but I’m still bleeding and SUPER worried!

Thoughts? I’m nervous bc I had a blighted ovum last year at 7 weeks and had to have surgery.