Low fluid at nuchal scan?

Had my nuchal scan today, but baby was in such a curled up position the tech could not do the measurements accurately and made me come back in an hour. Baby was still in that position for scan #2. She was very concerned by this and said baby may not have to room to stretch out because I have so little fluid and referred my to a high risk doctor to rescan, and recommended the NIPT test instead of quad screening. When I left she said to hope for the best. I am losing my mind with worry. Has this ever happened to anyone?