Was having twins-possible trigger?

Went for our first ultrasound today. I seen 2 sacks. She wrote foetus A. And I'm like umm...there's 2 isn't there. She said yes but no. Foetus b wasn't viable. Could barley see it. But A is doing good. Measuring 7w5d heart 147.

My dad is an identical twin, and even tho these were fraternal, I still had a feeling the past few weeks. I don't know how I feel about "losing" one of them.

This is my 3rd. My partners 1st. I couldn't help but cry in the ultrasound, it was ment to be a special exciting time for us, especially him because he's never done this before and I feel I ruined that.

They don't do print outs here. So I snapped a photo of the screen. And now I can't look at it because it says foetus A. I don't want to be reminded there was a B.

I need to drag myself out of this negativity and celebrate the baby we ARE having. But I cant help think I might lose this one too. I'm a pessimist and I struggle daily to see the positive in anything. Then when something gets me down more it's harder to convince myself otherwise.