Blood test 8 weeks

Ha

Hi im really hoping someone can give me some positivity on this, had a call from my midwife to say something has been detected in my blood from my 8 week appointment and I have to go and see a consultant in the morning, it all sounds very urgent and now I am in complete panic mode. This is my third child and I’ve never had this before, plus I was due to see a midwife next week anyway so why do they need to see me 😫 I’m 11 weeks