missed miscarriages

Shona
I have my scan In 4 days I will be 13 weeks 4 days pregnant with my first baby. I had a private scan at 11 weeks and everything was fine, baby was moving loads and heartbeat was 165bpm but I can't help but worry as I always see so much negative stuff on here and it's made me so nervous. Has anyone else felt like this or am I being irrational worrying?