Yesterday

So I went for a ultrasound yesterday and I’m suppose to be 6 weeks and 4 days but I was reading the findings even though it’s not for sure but it said they couldn’t see a gestational sac, yolk, or fetal pole. I’m really trying to be positive but I’m getting sad. My pregnancy test still say positive but I dunno. Maybe I’m earlier than expected and that’s why they couldn’t see anything ? I know for a fact I ovulated late. I don’t n ow what to think. I’m trying to be positive 🙁