MFM suggestions.. Did you hear the same?

Krystal
I have given birth to three preemies so I've become accustom to certain precautions. My MFM told me she didn't agree with my ob. She is suggesting that we forego the progestin shots from 16 weeks forward. She read a study that says it could be harmful for the twins. She also said no cerclage. Did anyone else receive similar advice?