Lyric discussion by MisterHenderson 

Cover art for You Got Me lyrics by Taking Back Sunday

Yeah, I definitely agree with that, the lyrics spell it out pretty obviously. Whether it's about his wife or not, it's about some young pregnancy. The song refers to her finding out, her father finding out... how they were both scared but he didn't show it. Possibly she was considering not going through with having the child saying it was her body, but he's just saying he was there through all of it, just as he should have been.