The main prenatal test to consider is diagnosing a twin pregnancy. Exploration indicates that approximately 40% of twin pregnancies are not diagnosed right until the thirteenth week of pregnancy. An ultrasound can determine if twin babies are identical or fraternal. This is known as heteropaternal superfecundation — a common occurrence https://webnowmedia.com/story5674438/hcbs-new-project-sector-102-gurgaon-an-overview