#gestational sac #yolk sac kya hota hai #babyultrasound
Gestational sac is first sign of pregnancy on ultrasound and can be seen as black anechoic sac on ultrasound , if it is visible inside uterus then pregnancy is confirmed.
Gestational sac could be seen at 4 weeks in transvaginal ultrasound and at 5 -6weeks per abdomen .
Yolk sac is visible at 5 weeks and double decidual reaction.
fatal heart ❤ at 6- 7 weeks of gestation
