Is your son staying with her and taking responsibility? Its always important to encourage him to do the right thing. Just being there with him, and being supportive with his decisions is good.

(hugs) for you. Keep the communication with him open.

I think the best thing to do, like Ingi said, is to keep the lines of communication open with your son. Make sure you give him as much support as you can and that you'll love him & be there for him no matter what. Good luck!

Definitly support him so that he feels he can come to you for help at anytime. It must have been scary to tell you thats forsure. I couldn't imagine. Its tough. Just stand by him, and help him be the best dad he can be.

From a teenagers point of view i back up keeping communication open and suporting him no matter what he chooses and remember this is
your grandchild too. Both me and my partner were 15 when i got pregnant and 16 when i gave birth, this will be a tough time for him because he has to grow up overnight so just make sure he knows his mum is there for him

I know if this happened to me, I would want my mom to be supportive and not judgmental. I realize it's difficult not to worry since they are both so young and you have the experience to know what a difficult road they have ahead.

But, as the others said, being able to communicate with him and his gf is very important. I also hope you encouraged him to take responsibility for the situation.