NT Scan 2.9 NT

I just need some reassurance. I got my genetic testing back, and everything came back negative. I had a NT scan today at 13w3d and the NT was measuring 2.9 I know that’s still within normal limits but it being on the higher end really has me freaked out. The DR didn’t express any concern especially since my genetic testing came back normal but my mind won’t relax so if I could just hear some stories of ladies with higher NT measurements and everything still being ok I’d really appreciate it.