is 7 weeks scan very accurate ?

[pierrederosette]

Hi am 41 and this is my very first pregnancy, i had a scan on my 7 weeks and they could not see the embryo nor hear the heartbeat yet the yok sac is there. as my period is irregular, they said 50 per cent all good or embryo stopped develloping ,,,,, am waiting next scan and am very stressed as it will 100 per cent determine if all well or not, did anyone had the same experience ?

[roxannacar]

I had this at 5 weeks with my first. It was two weeks of hell waiting for the second scan but all worked out.well and said baby is now almost 5yo. If your periods are irregular any chance your dates are off?