I have a 7 month old banty cochin who has been trying to be broody for about 6 weeks now. They are known to be broody and make very good mothers, which is why I added this one to my flock this year. My other banty cochin is about 4 years old now, but I didn't expect this so early for my new one. I know from the behavior of my other one, that if I let her have a clutch, she would hatch them.
What I do, is check for eggs several times a day. I do my best to not let any eggs sit under her for very long. When I collect eggs, or check for eggs, she will get off the nest and go eat and drink. She looks healthy, combs and wattles are very red, and I'm not even going to try to break her, unless I see her health going down. Going broody at her young age, I honestly don't think I could break her from it, if I did, I'm sure it would only last a week or 2.
I wanted my other cochin to raise day old chicks that I ordered this spring, so I put her in my smallish "hospital area" with a clutch of eggs 4 weeks before my chicks were due to arrive, and she went broody within 3 days.
This new one is still laying a couple of eggs every week, she's not completely broody, but she sure wants to be. I'm sure she'll make an excellent mama next year.