I agree with almost everyone. Having the test or not is entirely YOUR and DP's decision. For me, I had a NT scan and blood test done even though I knew my chance is very minimal. In a way, I did it for a peace of mind. The test was pretty expensive as it is not covered in Canada so I had to pay almost 400$ out of my pocket. If you don't feel the need to do it, then don't feel pressured because your age is considered a low risk group!