For the girl concerned - it can either make her as a person, or slow her down. her's hoping it works in a positive way for her.
BF1 has a best frined from school who is what I term a "serial father". He lived with a girl (who wasn't the most responsible person, she wouldn't lift a finger round the place) and got the girl pregnant. We all thoughrt he would find himself snowed under by the responsibilities of parenthood, he would be the one getting up for night feeds and doing all the nappy changes. he would have, too, he was so looking forward to being a father.
Then a few months after the baby was born, she upped and left him, taking the baby. Having the baby had made her take some responsibility for another human being, but she chose to leave the father, perhaps because she wanted the baby to herself and was arguing with hi too much about what the baby needed. She moved to another city; he moved as well, to be near his baby girl.
Next I hear, he's living with another girl and SHE'S pregnant. She has the baby, and leaves him. He moves in with a third girl and gets HER pregnant. last I heard, he's still on good terms with GFs 2 and 3 (still with no 3) but has some difficulties with access to child No 1, who he still would do anything for. But his own desperate desire to be a father, is leading to what I feel are (for him and the girls he is with) irresponsible choices.
Mind you, if either of my girls came home and said, "I'm pregnant," or if difficult child 1's Gfs had ever got pregnant, I would have accepted it as, "what's done is done," and stood by them, to support them in whatever decision they make for their future and the future of the child. Thankfully we haven't had to go there. Yet. Hopefully we won't.
One of thr biggest difficultiesis gonig to be their relationship. They're both still young, stillchanging and growing emotionally. Now with the added presure of such drastic change in their lives, it is going to have a different impact on her than on him. It can't be helped, no matter how involved he wants to be. Only one of them goes into labour. THis can drive a too big wedge in their relationship, or it could be the testing ground that proves their relationship can last.
Heather, if their lives are about to change, the best you can do is to be there for him, as much as is appropriate for someone who is not your child. Be a friend. They probably will need friends. It doesn't mean you think they've made a wise decision - being a friend has nothing to do with decisions they make. But it will give your son the example of compassion (assuming he needs it at all). And having him getting a close-up view of what they go through will be the best-ever deterrent to his own possibility of ever getting a girl pregnant.
Marg