Pregnant Platy Or Just Fat

[Jv777j]

I have 1 female red wag platie, a male and female Micky mouse platy, and some other female red platy. Iv noticed that the female Micky mouse platy is fatter than the male. They almost always spend most of their time together but the male never chases the female. The male Micky only chases my red platy and I don't think she is pregnant. So is my female Micky mouse platy pregnant? Other than being fat I haven't noticed anything different.

 

[sheffieldlad]

I have 1 female red wag platie, a male and female Micky mouse platy, and some other female red platy. Iv noticed that the female Micky mouse platy is fatter than the male. They almost always spend most of their time together but the male never chases the female. The male Micky only chases my red platy and I don't think she is pregnant. So is my female Micky mouse platy pregnant? Other than being fat I haven't noticed anything different.

She's probably preggers.
Most female live bearers are.
There is a sticky in the live bearers section of the forum which explains the subject very well.