Has anyone ever had the blood hcg test done before was just wondering how it works different to a urine test basically I’m 12 dpo today and iv had 6 postives vvfl and some you can seen clearly and 2 negatives all in different orders so I’m really unsure weather I’m pregnant or not my period should be in the next 2-3 days but I carnt see the lines getting any stronger at how early on can this blood test detect the positive coz I’m scared iv gone to early please help ?!?