Are they really wrong??

Britney Spears says that tabloids in US is lying about her pregnancy. she posted at his website as:

"Do you, Us Weekly, In Touch, Star and other desperate magazines want employees who are honest, or those who are liars?" Spears writes in a posting on her website addressed "Dear False Tabloids."

I think the news may be true...But if she is really pregnant why don't she tell everybody as this is a good news for the fans...