oral sex from more than 6 years

if subjected to unprotected oral sex from more than six years where the man ejaculated in my mouth i dont know whether he is hiv + or no but he appears to be healthy uptill now and me also i dont have any symptoms or anything wrong and i m married from 5 years i had now baby 3 years old and im faithful to my husband i m worried if there is probability of being infected with hiv knowing that i have a recent cbc where all counts are normal can u please answer me