Plump harlequin rasbora

I have a chubby that I think could be a pregnant female.  She's fat all of the time, not just after feedings. What do y'all think?

 

If thats the case, then probably, and if she is, good luck!

 

Could be, or maybe she's just fat...my Guppy Corona is like that, always fat, but not preggy... :

 

Or she might have bloat, does she have a hard time swimming at all, if not keep an eye on her and if she does than you need to probably medicate her for that.