Sex with my kid

Well, that probably got your attention.
Those of you who know me are probably thinking - this is the ultimate sarcastic statement. Didn't the fact that you never have sex land you in this predicament in the first place? Yes. Waiting until 32 to lose my virginity was probably a BIG FAT MISTAKE. Topped only by the mistakes in my choices of men. I may very well have been better off to start having sex at 17 even if it meant having a baby at 18. In fact if I had a baby at 18, I would be a mother right now and you wouldn't be reading this in horror.
If I have a girl, I know exactly what I will tell her about sex. In fact I've pictured the discussions in my mind. They happen around the kitchen. They empower her to not make the mistakes that I made. They teach her about responsibility and choices as well as condums and the pill.
The problem is- what if I have a boy? I never thought it would happen until I looked more and more into the adoption process. It turns out that if I truly want a newborn, I may have a boy. Even though as a doctor I could ultrasound any expectant mother, and see the gender of the child to be- it isn't so simple legally, or even morally. And it turns out that the kind of mother who gives her child up for adoption is not always the kind of mother who gets ultrasounds. It makes sense. If I had to give away my own child, I wouldn't want to see an ultrasound. I would probably change my mind immediately if I did.
Even if I find a mother who had ultrasounds, there is always that slim chance of a misreading... and Congradulations- it's a boy!
So I can cope. I already know what people will say. If he turns out gay - it is because I deprived him of a father figure, and quashed his supposed straightness under my horrifying presence. But if he turns out straight, well I probably caused him to be "that kind of asshole" that he is- breaking wemen's hearts, treating them with disrespect. It's all probably pent up anger that I deprived him of a father figure. And don't forget my horrifying presence as a single mother. Even if he never develops to be drawn to anyone- I'm sure that will be all my fault too. I'm not so interested in what other people will say once my child starts dating. I'm interested in what I will say before.
I spend hours reading on how to be a good parent. Today I stumbled on an article by a single mother about raising a son as such. Her 10 year old got an erection when she went out shopping for uderwear. It happened again when they were watching an innocous program with an attractive woman dancing ballroom.  As I read this I quickly visualized my own future.
Unlike wemen who give birth, there will probably be no male around my child can think of as a father. Even if I had married an divorced a fairly unbearable man, there are some lessons I would much rather leave to him. I simply can not tell a male child how to deal with the changes in his body. It is somewhat like me to trying to tell someone how to cope with life when you are born deaf and mute. Imagination can only take one so far. Unless you have certain experiences, chances are you can not fully comprehend them.
So what will I say to my son? I have no idea.