How do you say I love you baby in Spanish?
There a tons of ways to express endearment in spanish:
Te amo mucho mi amor = I love you very much 'my love'
Try looking some up as well, theres lots of resources full of them
If you're talking to a boyfriend/girlfriend or even a spouse, you should say, "Te quiero, cariño"
For more terms of endearment and romantic phrases, read below...
1) Cariño - honey/dear
2) Mi amor - my love
3) Mi cielo - my heaven
4) Mi corazón - my heart
5) Papi - Shakira says this..."daddy" (you could also say "papacito")
6) Mi querido - my dear
7) Mi angél - my angel
8) Guapo or guapito - handsome
9) Lindo - cute/cutie
10) Mi vida - my life
11) Mi rey - my king
12) Sexy - take a guess what this means in English
13) Bello - beautiful
More romantic Spanish phrases and words can be found here. (some of them are quite...steamy )
nena would actually be baby as in the term of endearment.It is the feminine form nene, and it used mostly with women.