Hello.. thanq for ur question, Well u didnt meantioned is it her first pregnancy or 2nd ect!??  And about married history, and same complains in previous pregnancy!?? Or not?? And how u confirmed that c is preg?? Jus only by urine test?? Considering ur worry I can suggesting u smtg.. As c completed  6th week it's the time to begin her baby heart sound, if foetal pole and sac is not present yet , we will call it is blighted ovum, sometimes it happens... Jus wait for another 2 weeks and take a rescan... If pole and sac is visible with feotal heart beat, it's  fine u can continue pregnancy... Else u will going to bleed  in another week ok?? Be cool have a positive hopes... Hope this information is helpful for u.. With regards...

it will take time. don't worry.