pregnant platy father guppy

Hello guys. I had to make account here so I can ask this question. first of all i have to mention that I am a beginner in fish keeping. I have a 10gallon planted tank. In it I have: 1 guppy 1 platy 1 betta crown tail (docile) 1 corydora 2 ghost shrimps   Anyway this afternoon when I got home I...