Help! i THINK 3 of my fish are preggo! tetra danio and Mollie!

[Gazillion]

Hey HOW can I tell if my fish are pregnant cause I have a tetra a Danio And a Mollie that are 2 times bigger than the other ones of there kind.

 

[krap101]

Mollies that are pregnant get the gravid spot near the back, and they start to look more squarish, but for a black molly, I'm not sure how that'd work. For tetras and danios, I think the description were they start to look like tiny whales, but I never got that. I'd imagine they would square up as well, but I've never bred those two.