How do I get over the fear....

I had my 8 week appointment a couple weeks ago and everything went perfect. We heard the heartbeat and everything, but my next appointment is in like 2 weeks and I’m so nervous of something being wrong...I’ve seen stories of women who had a perfect 8 week appointment and then went to their next appointment and everything went wrong...it’s such a huge fear of mine for something to go wrong....I still have symptoms but that doesn’t mean anything...I just need some help easing my fear....I thought my fear would have eased down after my first appointment, but honestly it seems worse...how did you get over your anxiety?...