Honestly don’t know where to start with this scary news 😓

So I’ve now been classed as high risk pregnancy because my blood results at my 13 week testing came back with a low PAPP-A (hormones) and now they want to test me by doing amniocentesis at 16weeks but if it does come back bad and I have to make the horrible decision to keep or terminate the pregnancy because if I keep Bub will be born but will die within the month or have a stillborn between 29-39 weeks. Or I terminate at 20 weeks and still have to bury my baby. It’s not a nice thing to think about and both decisions are hard but I’m being told not to worry it’s probably nothing but I can feel this pregnancy is weak and so different to my last. I’m now thinking of getting a harmony test (only reason doctor didn’t suggest this as it doesn’t cover all chromosomes just three major ones) to see what the outcome is, and if it is bad having to terminate earlier then 20 weeks. So I don’t have to go through the heartbreak of burying a child I couldn’t carry (it doesn’t sound good but any way you put it it doesn’t sound good) basically I’m chasing support and if anyone else has been through this and has any information or help at all, like what would you do or how would you approach this... just wanting some guidance in this dark moment. Thank you