NST cancelled

I was supposed to start my NSTs twice a week today but they called me this morning saying the doctor at the hospital doing them said I don’t need them and all of them will be cancelled going forward. They said just to go to my normal check ups. I’m worried because I did IVF and everyone I know that did IVF did NSTs twice a week starting around 34 weeks as well. I am assuming they just don’t want people at the hospital that don’t need to be but it definitely makes me worried... anyone in the same boat?