Only yolk :(

Hi. I am speechless. I got my positive 26/11 and blood test confirmed pregnancy with hcg level of 1832 at 27/11.

I have very irregular cycle and do not know when I ovulated. I thought that today I was supposed to be 6+ pregnant but ob confirmed it is 4-5 weeks empty sack. I will have another ultrasound 29/12.

It is killing me. I had mc in August this year. Couldn't survive another...

Help. Any positive outcomes?