question: my sister in law underwent IVF . she had normal B ChatDoctor level THE ivF WAS DONE ON 1ST jUNE, 17 TH JUNE BChatDoctor LEVEL Was 206 and then on 22nd it was 600. Dr. asked for USG on 9th july for visualising cardiac activity. but she told that still the cardiac activity has not appeared and also size is 7 weeks 5 days. what could be possibility