I am single mom of a 10 year old, my son been locking his bedroom door for the past 2 weeks, something we don't do in my house, cause it's just the two of us. do you think I must do the talk or wait he is toooooooooo young?

He is old enough for the introductory talk. How babies are made. However once he says "eeeeuw" (or the like) stop there. Continue his education through stages later, as he shows he is ready.
Asking what he already knows is a great place to start the conversation.
If he is a social kid his friends have already told him much.

Thanks fivethirtytwo, he is a very social kid. I can see small changes like he wants to dress in all his nice clothes every weekend instead of old playing clothes.

well if you ask the progressives, they think it should be in pre-school. But I agree with 532...he will learn most of it from friends and then a good time to have a serious discussion is when he starts dating.

Actually with my son I started introducing the talk around the age of 10 and made it very clear by the time he was 12.. And offered condoms and more talk from 13 and up..

My daughter now, did not till around 12 and up offered birth control at 16. Not cause I did not trust her for she remained a virgin till she was past 20.. As I told her it was for situations she might get into, or if something might happened and should could be raped.. But she assured me she did not need them.. So she did not get on birth control till she was 21 and I asked her to again..

I have always had an open relationship with my kids. They can talk to me about anything.
Some topics I would rather not discuss but I feel if it's important to them to ask then I need to answer them.

One time my son revealed to me he had hair in his arm pits.
First thought oh crap I don't want to know gross boy yuck.
But I replied that's nice son, don't forget to use deodorant cause you will start to smell. Is there anything else you wish to discuss?
He said they taught him a lot at school about his body and the changes.

I think he was testing me to see what my reaction was.
We have had a lot of discussioms.

This girl wants to go out with him. He told her you have to meet mum. If she likes you then yes because she was right with the last two.

Oh boy I don't want to do this. I never wanted to be the old trout mother inlaw.

I have been putting it off m meeting her lol

thank you everyone for all the advice. I am taking him out for breakfast tomorrow and have the introductory talk. I am so scared my parents never did the talk with me.

Never had anyone to tell me about life as well.. I have always been very open with my kids and talked about anything and everything..

I've always been one to say what is on my mind still with my kids...

Even when I caught them doing things they should not I would look at them and say.... there is not much you can do that I have not already done so what ever you do don't lie to me when I ask you something..

My deal with my kids was always tell me the truth and I'll stand beside you and help you through it.. they both always came to me with their problems.. Cause they knew I would always be there for them and not judge them for mistakes..

We all make them.....it is always a good feeling when your kids tell you once they are grown and on their own how much it meant to them to know I was always there for them no matter what kind of problems they got into..

I was a single mom from the time my kids were 7 & 9. Sure we had some tough times but you deal with it and let them know you will always be there no matter what...