Help ASAP!! Dont know what to do with spare fertilised chicken eggs which are forming

Salam everyone
So we have a rooster and chickens and one of my chickens have gone broody (so she's sitting on eggs because she wants to hatch them) but we gave her 12 eggs (normally they can sit on this much but she's still a bit small) to sit on! One or two eggs are peeking out from under her and she cant cover them all and keep them warm enough. However, im 100% sure that they have started forming, although they are only 1 day old. I am worried that if I keep the extra eggs under her, she will try and get them under her and then that will mean two other eggs will go out from her and this will continuously happen, meaning all eggs wont be getting enough warmth as they should. This would mean they might hatch out with deformities or not even hatch at all. I want to get rid of one or two, but wouldn't that mean killing chicks, because I think they've started forming. What do I do?! Please help me asap!