I think that since you had the CVS things are alright. that is %99.9 accurate at detecting abnormalities. Most pregnancies have a couple soft markers for something (be it down syndrome, or dwarfism, etc) since it was ok (the CVS) then don't worry about it. Things should be perfectly fine.
well, if you or the father are short, it might explain the short limbs, but then again, it might not even be a big deal, and a small pp???? i have NEVER heard that that indicate any sort of a problem. i hope u choose to keep the baby, it is a real living being. im pro-life. I hope you believe in God, you should just tell him your fears, and aknowledge he is in control on every situation, no matter how big or small. i hope everything is just fine, and just so you know, just bc the doctors did a test, it is NEVER 100% correct. do not jump to any conclusions.
I'm sorry that you're going through this. Does it matter to you if your child has special needs? If so, I would go with the amnio. If it does not matter, then I'd wait for the ultrasound to see if his growth has improved. I personally would not want to do any invasive tests if I were going to keep my baby no matter what the results were.