My friend is 7 months pregnant and has long broke up with her boyfriend when she was 2 months pregnant and now she is falling in love with me, and wants me to be her boyfriend, she is 27 years and I am 23, is it right to be in love with her? How do I tel her if I can't be with her, I think I love her too, but I can't be with her.

Your friend is very vunerable right now,and perhaps its not the best time to start a romantic relationship.

Be her friend,help out if you can and want to,let her adjust to becoming a parent without the complications of a new romance.

5 months out of a relationship is not long and she is pregnant and hormonal. Getting in a relationship is not something she needs right now.
If you love her but can't be with her maybe you ought to back off a little.

Why do you feel you can't be with her and how long have you been in her life?

You have to be straight with her.

Tell her you'll be there for her as a friend, but nothing more.

It sounds like she is needy, and understandably so; she's about to become a single mother, and she needs you in her life.

It is up to you where to draw the line, and very important that you think of the consequences before getting mixed up in this.

Are you prepared to be a father to her child? To take on a family, with all the responsibilities that entails, is an enormous task at any age, but at age 23, even more so.

My advice is to follow your instinct, and I get the impression that you need to establish the boundaries and expectations of the relationship.

This guys feelings are all over the place.
https://www.askmehelpdesk.com/relationships/iam-love-brothers-ex-girlfriend-how-do-tell-her-love-her-474966.html

Just be honest with your friend, that's what she needs is a friend, not a boyfriend. I understand you don't love her in that way.

I don't think this is the brothers ex, though. Is it?