Stop telling me to stop trying!

ok this is gonna be a rant.... I'm so sick and tired of people telling me to stop TTC it'll "happen when it's your time" hmmm that's funny because I know plenty people who have gotten pregnant at 16 or after a drunken one night stand etc.. are you telling me it was their time but I , a married women with my own house and a reliable job , have to wait because it's "not my time" or "you need to stop trying then it'll happen". I'm sorry but how am I to get pregnant if I don't try?