A manual or transvaginal cervical check by your obstetrician is routine when a cervix is being watched closely in pregnancy, and it's considered safe. The amniotic fluid stays sealed inside the uterus and membranes, so a physical exam doesn't reach or disturb it. The mucus plug can show some light spotting or discharge afterward, but this isn't harmful on its own. Your cervix going from 3 cm to 3.8 cm over these weeks is the direction your doctor wants to see, which is likely why the cerclage plan was dropped.
Next Steps
Go ahead with the exam your obstetrician has planned. If you notice cramping, bleeding or watery discharge afterward, discuss it with your obstetrician right away.
Health Tips
Get checked the same day if you notice watery fluid leaking, persistent cramps or bleeding after the exam.