Need reassurance please. 😢

Charlie • Poppy - 9th August 2016 👶🏼🎀💗
Don't know if it's just hormones but I'm so worried about my dating scan Thursday at 12 weeks 5days. I had scans at 7 + 9 weeks and baby was there with strong heartbeat. I'm just so scared after miscarrying last year 😢😢