5 weeks pregnant without embryo, yolk sac affect what?

Question
Hello doctor,
On September 20, I got pregnant with an ultrasound, the size of the gestational sac is 8mm, the second time I went for an ultrasound on October 3, the result was GS 18mm, 5 weeks 4 days pregnant. , the amniotic sac margin is continuously stretched, there is no image of the embryo and the yolk sac, the trophary membrane is thick and there is no choroidal fluid collection, there is no abnormality around the uterus. So the doctor let me ask you 5 weeks pregnant without embryos, what are the effects of the yolk sac? Thank you doctor.
Phan Thi Nguyet (1998)
Answer
Answered by Doctor Nguyen Anh Tu - Department of Obstetrics and Gynecology, Vinmec Hai Phong International General Hospital.
Hello,
With the question “5 weeks pregnant without embryo, what effect does the yolk sac have? ", the doctor would like to answer as follows:
According to the information you provided, after 2 weeks from the time the 8mm gestational sac is in the uterus, the embryo and fetal heart have not yet been seen. This is a bad sign for pregnancy. To be able to have an accurate conclusion, you should go to reputable obstetric centers for examination and advice.
If you still have questions about 5 weeks pregnant without embryo, yolk sac, you can go to a hospital of Vinmec Health System for further examination and advice. Thank you for trusting and sending questions to Vinmec. Wishing you lots of health.
Best regards!