So opinion... With my first pregnancy I found out I had a shortened cervix at 2.5 at 19weeks. I was placed on vaginal progesterone. I went into preterm labor at 34 weeks but was able to stop it.

So I am currently 19 weeks with my 2nd. I had a trans abdominal ultrasound today where they said it was 3. I thought the only efficient way to measure a cervix was with a trans vaginal ultrasound? I may just be overly cautious but just wanted to see others opinions. My OB hasn’t been very concerned at all.