we have 4 mollies we,ve not had them very long 2 silver and 2 dalmations, it seems that the females have been on the large side around the middle we dont know if its just the way they're supposed to be or do they carry for a long time.
i swear we need a pinned article with pic because this question is asked daily basicly if its a livebeaer it will be very fat, and look squareish from above, if its clear u can kinda see a dark spot behind the anal fin called a gravid spot, if its rely dark then ur fish is quite possibley prego