chromosome crossover - anyone had the same experience?

I'm 14 weeks pregnant and now was just told that the chromosomes had crossover and now they want to check to c if anything has been deleted or is still the same and to make sure if it's balanced or unbalanced and the baby is okay but besides this my baby has fluid by the neck it's been like that since I was 11 weeks and I did the cvs test and this is how I got the chromosome results and thank god there's no Down syndrome of anything those results came back fine but now we have to wait a week or 2 for the microarray results and I wanted to know if anyone has went through something like this already.