my wife is 15w4d,foetal movement and cardiac activity is noted heart rated is 168bts/min,BDP-31MM,FL-18MM,placenta is seen developing along the anterior wall,grade 0 maturity,cervix is normal,cervical lengthis 3.7 cms,internal os is closed,loquor is adequate for gestational age,plz tell me if everything is ok,she is 39 yrs,4.9feet and had 2 miscarriages before one in 07 and other in 10 she got pregnant thru ivf.