dreaming three times

theres the old wives tale that states if you dream the same dream three times, then it comes true. my employee, also a friend, said she has dreamt of me being pregnant for two nights in a row. she said she is also a pisces, and her dreams usually come true, something along the line saying pisces are good a seeing the future, and deja vu type stuff. I am a pisces and i have had some weird "future teller" stuff but idk. does anybody else believe the wives tale, or believe certain people/signs have an ability?