hcg levels...

An

okay so when I went to the doctor I was estimated to be 8 weeks and we couldnt eee the baby on a abdominal ultrasound (she was not trained and honestly shouldn't have even tried) so I've been freaking out. just got my hcg results and they're 6500 they said everything looked normal. I googled hcg levels and noticed 6500 is low for 8 weeks, am I probably earlier on? I did have a one day bleed on the 27 of June but we weren't counting that we were going by the 6th I'm over 8 weeks but the 27th would make me 5 weeks and that doesn't seem right because that means we would've found out at 2 weeks pregnant which is impossible..