I looked and I wasn't able to find solid pics to confirm the sex of your other fishies but from when I kept livebearers back in the day if I remember right it wasn't unheard of for them to store sperm
Thanks! Yeah, fish are pretty hard to photograph, I am realizing. 😅
Here's the best I could manage earlier between motion blur, coloration (parts of this fish are basically translucent), and the fact they only fully deploy them when they're not moving... but my presence gets them all excited about potential treats or water changes. Lol. This is Timberwolf the fish we bought:
Gif for maybe better clarity? Idk. 😂
Cameo by one of the Jims!
We chose this specific fish because we thought the rear fin was female-presenting and they seemed to young/small to be pregnant (knowing nothing of their ability to, ahem, save it for later).