What would you do?

Whitney

Being seen by MFm and ob. 20 weeks , anatomy on Monday showed 2.7cm cervical length , she kept asking if I’ve had surgery before but wouldn’t answer question. I don’t meet with mfm till tmrw. This is 7th pregnancy, 4th hopefully live baby. My last came early 36weeks but cervix was long and strong never weakened. My regular ob says this is short end of normal. Should I be requesting preventive action at this point of 2.7cm ?