So I have had many fears lately as to weather or not I could have gotten an STD, as well as am thinking about practicing oral sex on my boyfriend, but I want to be positive of this answer first. I know for a fact my boyfriend has never had sexual relations with anyone but me in his life, however there is still a fear in me that his mom could have passed something to him if she had an STD when pregnant. At 16 years old, would he know by now if he had gotten an STD from her? Thanks so much