Anxious - 2nd baby. Please tell me I'm not the only one!

Currently 7 weeks pregnant with my second baby 😍❤️ But I can't help feel terribly anxious this time around! And I mean about everything, and I'm totally convinced that 5 positive pregnancy tests (1 being digital) are wrong and I'll turn up to my 12 week scan and there won't be a baby 😭 I have normal pregnancy symptoms like I did with my first. I don't remember ever feeling this worried with my 1st pregnancy. Did anyone else experience this the 2nd or 3rd time around? My daughter will be 3 and a half when baby #2 arrives.