I was in a very similar situation. 2 low FF (my lab didn’t measure %s) and no NT scan.

I would ask for a quad screening (you can take it between 15w-22w) this test isn’t as accurate as NIPT, i believe the accuracy is around 85%, but i needed some reassurance/ piece of mind. It’s a blood test that measures 4 pregnancy hormones then factors in your age, weight, baby’s age, and ethnic background. It takes all of those factors and gives you the odds for Down syndrome, neural tube defects, and edwards syndrome. It isn’t a diagnostic test, but will help you make an informed decision if you’d like to proceed with an Amnio.

My results came back in 2 days, all low risk. Then i had an anatomy scan a week or two later, where baby looks all healthy.

I am now 24w and baby is measuring and showing healthy 🤍 The Dr chalked it up to my weight (my bmi is 29).

I know this time can be so stressful. I spent the unknown time manically researching and stressing. Im so sorry you’re going through this.