<human>: Can you summarize the given text in a few sentences?

I'm in love with someone I have known for years. We finally got together a few months ago and came clean to each other about how we've wanted to get together over the years, but never could because one or both of us was always in a relationship with someone else.

Anyway, the first few weeks of our relationship were the absolute happiest days of my life... until she gave me some troubling news.

She gave me a call one morning to tell me that she was pregnant, and that the kid was most likely not mine. It turns out that more than likely the last time she and her ex had sex, she got pregnant. That was about 2 weeks before we got together.

At first I told her I didn't know how I felt about this, but as I thought about it, I realized how much I actually cared for her and let her know that, if she wanted to keep that child, I would help her raise it. Now she feels like she doesn't deserve to be with me because apparently I'm "a real man" (her friends words) willing to step up and help raise a child that isn't my own. 

Here's the part where I need advice Reddit. She has since started working all the time in order to save up as much money as she can, and for the last two weeks, I have only seen her for about 20 minutes when I visited her at work. I feel like the fact that she is having some other guy's kid is making her distant and I can tell she feels differently about things. She's been getting depressed thinking about her situation, and has told me that she feels like trash because of what she's going through.

I love this girl more than anyone I have ever been with, and I can see a future with her. Is there any advice on some way I should approach this situation that I might not have thought of?
<bot>: Girlfriend pregnant with another man's child (prior to our relationship), willing to step up and help out. Want future with this girl. She's becoming distant, drowning herself in her work to save money. Need advice.