What causes lack of fetal heart beat during pregnancy?
Patient: i m 22 years of age and today i had a vaginal scan. i m 6weeks and 5 days carrying. it says no cardiac at present and asked me to take another scan after 3 weeks. else everything is normal with growth of the fetus. i m scared and tensed wether it ll turn out a bad news after 3 weeks. please reply as soon as possible... Doctor: generally on tvs scan fetal heart beat can be detected as early as 6 week. so If on scan no fetal heart beat then go for repeat scan after 10 days.  Don't worry everything will be fine if All other parameters are normal.