Several thoughts here.
Talk to your son, be honest, your female and don't
know all the things in regards to the male side. Tell
him he showed you that you can trust him by his telling
you about it first hand. That you have 2 things you
want from him. Be open with things to you. And use
a condom for 2 big reasons...you don't want him
getting any sexual disease that could end up
killing him or a child.
Talk to your dad, your brother. Family can help.
If your dad is not into that type of talk, your
brother may be able to. A man to man talk is more
factual due to just the fact...I am a man and this
is how we work type of thing.
Then you go down the line, uncles in area you are
close to? Then if you go to a church, a male you trust,
a male teacher you trust, even your son's dr will be
a good asset *if not male, male physicians assistant?*.
Don't just think moral in lines of church, think moral
in line of safety and knowledge is the best course for
Don't make you son fear women, just be open that some
will lie to get what they want, and sometimes
there will be one who is after a baby for welfare,
or a baby to get the man she thinks is well off