Hi,
As per my last periods date(29th July 2013), I am 6 weeks pregnant now. But as per my 1st sonography report, the foetus is only of 4 weeks. As per doctor, the heart of baby is not yet formed. Should the heart of the foetus be formed at this stage or? Is this normal?
I am worried. Please advise me whether this is normal..

Thanks in advance,
Swapna