Hello, the doctor! Duration of gestation of 16 weeks. The conclusion of US: biamni...

[Merit]

Hello, the doctor!
Duration of gestation of 16 weeks. The conclusion of US: biamnioticheskaja bihorialnaja two at a birth. Prompt, please:
1. What is it means?
2. From what term it is necessary to expect fast "body height" of a tummy?
Thankful in advance.

[Pasenjuk A.M.]

Bihorialnaja - two placentas. Bi amnionic - two fetal eggs. Most likely twins, not twins. After 20 weeks