not sure what the numbers mean but i'll try and answer. I have 2 children and have had one rather nasty miscarriage. With my first I was clueless about what being pregnant like. After him i miscarried about a year later. My third pregnancy, i knew i was pregnant straight away. i even had implantation pains. a cramping in my stomach that lasted about an hour then went away. I continued to take tests which all said negative. I persisted as i knew i was pregnant. I took one of those urine tests that u can buy at the chemist, that say they can tell u if u r or ur not 5 days before ur period is due. i took this one 2 days before i was due on and it was a very clear positive. i think it depends on when in ur cycle u conceived and how high the level of pregnancy hormone is in ur body. If ur sure ur pregnant, keep testing as i did. i'm sure it will come back positive for u. like u said u know ur own body. i never had a blood test to confirm pregnancy. good luck!!