It's been 10 days since i had sex i just had a blood test that came back at .1 hcg is this to soon to be accurate ?

Probably: If you ovulated 10 days ago and got pregnant it would still be early, so I wouldn't count on anything yet. A pregnancy test (home or office ) is usually reliable yes/no 1-2 days before your period is expected, regardless of when you had sex.

Could be: Follow the directions on the home test you are using, as well as the timing. If negative, repeat 7 days after missed period, If still negative, and no period, see doc for blood test.