One of my seedlings leaves fell off from rain!!

Does it look like it will live?? Also how old does it look because I don't remember when I planted it...
http://imageshack.us/a/img59/4206/imageumes.jpg

Its looks like its going to die. I bet its 3 weeks old by the picture. Oh yeah...there is no picture. Wtf?

Ok I found it. Its going to live. Its looks 8 days old. Its going to die if it keeps getting drenched. Its a mutant.

Its gonna drown..