how long has my platy been pregnant

[Platyboy]

hello i am new to the site and i am wondering ho long my platy has been pregnant i just bought her today and she has been placed in to a breeding trap and has been watched very carefully she seems to stay in the top of the tank and not eating any help
ryan

 

[khoifish89]

Post couple of pictures. But a sign of not eating is a sign she can give birth any day now.

 

[Platyboy]

here you go