Ok I no this sounds bad I think my friend lied about having a miscarrage she said she was 3 weeks gone , she had heavy bleeding so she went to the doctors the doctor said to her go hospital she said they did 2 scans and it was a boy and the hospital want to keep her in and gave her tablets , I had a miscarrage at 3 weeks I had a scan they couldn't see anything so they did hgc over 3 days and they were getting lower and they said I will miscarrage and I did a day later I feel bad for thinking she is telling lies is it even possible to tell the sex of baby at 3 weeks