Awh that is definately pregnancy / baby to be bloats and growing.  Think of it this way, it appears that you will be one of the lucky ladies that gets a pregnancy belly and not pregnancy flabby chubby look. I know its hard, but try to enjoy and embrace this type of growing. 
Proud Mom to Allen (20), Christa (14), Sophie (2), Stella (1).  and an angel 5/07 