Cryotherapy?

Did anyone here ever have cryotherapy done on their cervix and then have a hard time dilating when you were pregnant? We did IVF and they had a hard time getting the catheter in my cervix for embryo transfer now I'm going on 40 weeks pregnant and still at 1cm but really thinned out. Dr thinks its due to my procedure I had years ago that has caused scar tissue. Just looking for stories. Thank you