Twin to twin transfusion testing?

Roxane

When did your doctor start checking or testing for twin to twin transfusion syndrome? I mean, what week?

I’m pregnant with mono/di twins and I’ve chosen to see my regular OB instead of a high risk specialist. My doctor is only doing ultrasounds at 20 weeks and then once a month after. I’m currently 12 weeks and won’t be getting another ultrasound until February. My visits until then will only be Dopplers.

Would a high risk specialist do more frequent ultrasounds or test for different syndromes and disorders than my OB is going to test for?