bro - nobody can tell you for sure if its going to make you sterile. I am going to be planinng a familey in about 2 years. I can sympothize with your concerns. The last thing I would want to tell my wife that we can't have kids cause your husband is an f-ing idiot who couldn't resist the temptation of the sauce. Anyways, there is a lot of info on fina on this board - everyone seems to love it. To me the sides seem pretty harsh and I would rather go with an alternative that has less sides. Do a search and you will probably find the answer.