My wife is 5week 6days Pregnant, she got bleeding, We got first sonography and found that our babies heartbeat is 120, Sonographer said it is less, should be 150 to 170 and asked us to keep faith, when we show the same to doc, he said it is fine and gave her few injections and medicine and said would be fine... I want to know what are the chances we have for our baby? . My wife got two miscarriage earlier and we are now concern and don t want to get the same result, can you please advise..