Well I might be misscarrying. Started lightly bleeding today (red blood). I know I am either 4 weeks + 6 days (20dpo) or 5 (21dpo) weeks preg today, but had a scan and the sonographer said sac is in the uterus but only measuring 3-4 weeks (but he did do an abdominal scan not a vaginal). But I am confused I had a positive preg test at 11 dpo, had blood result of 831 at 14dpo and another blood result of 9761 this morning at 20 or 21 dpo. So if the sac has stopped growing, why is my HCG increasing so much? They said they will do another blood test in a couple of days and a another scan in 1 week, if I haven't miscarrried by then.