help for growth stages on tamagotchi friends

Sorry to write here for support again, but havent played with tamas since I was a kid and WAY TOOOO MANY THINGS have changed since. so... I am a bit confused about the growth stages.

I am at gen 3, and right now the tamas evolved as following.

Petithantchi- Neotchi_ Coffretchi

Aokumotchi- Cosmotchi- Mametchi

Aokumotchi- Turletchi (still not adult)

Now I was wondering, how come I got Aokumotchi twice but one time it turned into Cosmotchi and this time into Turletchi?

Is it possibile to have the same baby stage but two different child stages?

Yes it is possible. If you need more help on the tama friends, here's a site that may help you...

https://natashenka.ca/