50 days pregnant, no reason to see the fetal heart

Pregnant women in the 50th day of pregnancy examination did not observe the fetal heart, considered to be caused by late embryo growth and development. It is recommended that patients can continue to observe, in the 60th day of pregnancy, re-examination, if the examination does not appear fetal heart, then highly suspected of fetal arrest. Patients need to conduct blood tests, further examination, clear the cause.