When do Mollies reach maturity?

[MollieLover101]

Hi, I have a batch of baby Molly fry that were born about 3 and a half months ago. Recently I have noticed that they have mostly developed a gender. They are still only half the size of regular mollies but I'm scared they soon might start mating.
So, does anyone know when Females & Males can start reproducing?
Thanks

 

[Aiken Drum]

They could already be breeding.

 

[emeraldking]

Got to agree with Aiken Drum...