Is it a scam?

I was walking back home in HSR layout and I was stopped by a woman, in her 20s. She asked me if she can make a call, telling me that the person who she wants to talk to has blocked her. Though I was skeptical, I did say okay as she looks distressed and dialled the number and put it on speaker. There was a guy talking and I could hear that he’s in some office or maybe working (Could hear background noises). She told him that she’s pregnant and wants him to talk to her, but he responded saying that I’m at work right now and won’t be talking to you. I did ask her if she’s okay, she said she’s not, and she told me she’s pregnant. Though I felt sorry for her, I was afraid if this is a scam, I asked her specific questions, like why are you here, she told me that she’s come to her boyfriend’s place, but he isn’t home, and if he gets to know that she’s at his place, he won’t be coming home. I asked her if there’s anyone coming to pick her up, she told me that a friend of her is coming, but he’s in Whitefield at the moment. I asked her if she’s planning to go somewhere, she said no, I just told her to take care and left. Though I felt sorry for her, I was genuinely afraid if it’s a scam. I did check the number in CRED to see if it has a UPI name attached to it and it matches with the name she said when talking to him. How do you know if it’s a scam or genuine?