I fell pregnant at 17 in February last year, after having only been with my boyfriend five weeks. I now have a beautiful seven month old son. He is the best thing that has ever happened to me.
For various reasons I am living at home, and I find quite the opposite of one of your concerns - it is difficult to get my parents to stay away and let me parent myself! My parents have said that actually they feel very blessed having their grandchild living with them, and getting to see so much of his early life, as not all grandparents do. But they maybe having him for five minutes tops a day, to give me time to have a shower, though I tend to wait till he is bed now. Sometimes my mum helps me out if I am having a very bad day with my illness and changes a nappy or two to give me some time to rest. But mainly, I want to do it. I don't want anyone else doing it. He is my baby boy and my responsibility, and to be honest, I revel in it - he give my life meaning again.
I know you are obviously concerned for your daughter, but some of what you are saying is pretty harsh. She may seem very young right now, and she probably feels it, I know I did. But you grow up very quickly when you have a baby, regardless of your age. Some of the young mums I have met through pregnancy and postnatal - some as young as 15 - are "older" than some 30 year olds I know.
Secondly, careers - whatever their stage - go on hold at least for a short time when you have a child. And that could be at 17, 27, 37, even 47. For health reasons I am out of education and have been for two years. Whether I had had my son or not would not have changed that. I want to go back to studying, and hopefully eventually working when I am well enough, and if nothing else, my son has given me the motivation to not give up. So do not let that be a factor of your concerns
Finally, as much as you may feel a termination may be best for her, please please please do not put the pressure on her to make that decision. I kept my pregnancy, and that wasn't because I wanted a baby; it was because I couldn't bare to do through with the other option. My mum, partner and partners family all thought a termination was the best option. And knowing that, having it piled against me, even if it wasn't said openly, made me feel even more frightened and isolated than seeing that line appear on the twenty pregnancy test. As frightened, confused, upset, angry and overwhelmed as you are feeling right now, she is probably feeling at least 100 times that.
I hope this doesn't sound like a personal attack, it is really not supposed to. But the memory of my early pregnancy is very clear (and my brain is not functioning correctly tonight, so apologies for wrong phrasing etc).
Sending you both lots of strength right now - if she does decide to keep her baby and wants someone to talk to, there are several young mums / people who were young mums on here.
Take care, now.