Yes, she is. They had barely starting dating when my mom found out she was pregnant (her and my uncle had already ended their relationship at this point). Her future husband loved her too much and basically said fuck it, no matter who that baby is we'll raise it as our own. Yes, they were in love. From what my mom and bio dad told me they were both going through some awful breakups at the same time, they comforted each other and eventually that turned into a full blown relationship. Their relationship ended because my mom got tired of living a "forbidden love" and just wanted to start her own family and live a normal life. She was tired of keeping everything a secret.