is my potbelly pregnant?? picture

[kaylanoto]

this is charlotte she's only bout 3 months, possibly close to 4... however she is free ranged with two boy pigs, I feel as if her tummy falls closer to the floor as weeks pass... although I'm thinking she might only be a few weeks pregnant if she is at all? I new to pigs so I'm not sure at all, and how do I know if she is pregnant or just eating too much? also can a pig that young even be pregnant? I feel like she's so tiny compared to the other "mothers" I see

 

[kaylanoto]

this is her in her feeding pen a few weeks ago, she goes in here to eat along with sharing food with the two boys