Pregnant after lletz treatment cin3

Hiya i had lletz for cin3 in 2017, i have recently found out that i am pregnant. I am still very early and havent spoken to a midwife yet. I am just starting to fret about what will happen because of me having treatment.

I also still had the hpv virus on my last smear test in January and was supposed to have another smear next January. Obviously fingers crossed i will still be pregnant and Obviously that wont go ahead.

Just worried about pre term labour etc and maybe having to have a stitch in my cervix. How would i find out if that would be the cast for me?