If a heart beat is not found at 8 weeks of pregnancy
, then it is a missed abortion
. This can be correlated with measurement of serum beta-hCG
where no rise in titres is noticed. You can have another conclusive trans-vaginal sonogram with good resolution after a couple of days before you decide on the fate of pregnancy. Meanwhile abstain from further intercourse and take bed rest
. Please follow your doctor's instructions. Wish you good health.