Dear Madam, It is indeed a very sad event that has happened in your pregnancy. The fact that there are no foetal heart beats observed during ultrasonography indicate that the baby is no more viable and nothing can be done to bring it to life now. The only option left for you is to get the pregnancy terminated ASAP. Delaying termination or continuing such pregnancy has a risk of developing clotting disorder (DIC), infection, kidney failure, etc. It is very difficult to pin point the cause for the foetal wastage at this stage. It is likely to be due to the viral infection you had or chromosomal abnormality in the baby. You may think of getting genetic work up done for both of you. Please do not loose your heart. Next time you have opportunity and chance of having a normal baby.