Please help. I have two plants in one pot. And I also dont know if they are ready for flowering?

Its my first time planting cannabis. And I want to make it indoor because its not legal here in our place. First my problem was I grew it up on the same pot because I dont have a choice since Im afraid whether it could both die If disturb their roots so Im planning on growing them together and just replanting it on bigger pot. So I will just ask if when is the right time for me to replant this two and when will I start flowering them?