My wife was pregnant this year in march it was our 1st pregnancy, in the 1st US on 7th week report was not good doctor said that its a blighted ovum so lets try after one week uf not positive then go for DC. Unfortunately we had to go for DC after a week. Now she conceived again 8 week gaps. In the meanwhile my wife had gone under some tests suggested by doc. Nd took some medicines also suggested like folic acid & one more tablet. In our 2nd pregnancy we yesterday went for US this time growth is there but again heart beat not found its 8 weeks 2 days now. please suggest what to do and why its happening again and again is there any deficiency among us or its just bad luck. doctor has asked to go for Us after week but hope is less.