18 and pregnant

Before I was sure I was pregnant it felt like this was the worst thing that could happen , now it feels like the worst would be something happening to my little bean , I’m young healthy have no history of misscarages , and have never been pregnant before yet I can’t help but worry about him/her , any advice to calm this worry ? I’m only 6 weeks and the last thing I want to do it cause unnecessary stress but I’m really struggling with this