Infant growth is affected during preganancy?

i m married of 27 i m trying for baby from 3 yrs.i had done lots of test likeBUN ANA ACC TSH CMV ALL ARE RIGHT ONLY MY HSV test is not ok.my docter suggest me chromozonal genes test of my and my husband.twice a had to abort my baby in third month due to non-growth of baby.my husbands semen report is ok.please suggest.thanks