My boyfriend and i have unprotected sex every time that we have sex, and that is about 3 times a week. We use the pull out method but he sometimes doesnt pull out fast enough and i have never gotten pregnant! We have been doing this for about a year now! He smoke marijuanna about 10 to 15 a day he is always high, is this why i havent became pregnant? Does marijuanna enable him to have kids or should i get checked?