You could wait until day 20 and then give her back some or all of the eggs to hatch. However, if this is her first batch, make sure you check on the chicks after they hatch. I have had a broody or 2 that freaked out when the eggs hatched and she kept tossing the babies out from under her. A couple died before I found them (cold) others I brought in and warmed up until they were nice and fluffy. If my memory is correct, I believe 1 broody took to the fluffy chicks when they were returned to her (snuck them under her) and the other broody wanted nothing to do with chicks, she just wanted to sit on eggs.I'm totally seeing that already - even my 2 silkies were just so different. I just feel a bit sorry for her, she is so big adn I'm sure she didn't mean to - she is just young and inexperienced so I just want to help her so that she can be a good mama in the future (and hopefully for this hatch too) as she is a lovely gentle hen and I think she'll be a lovely mum.
What would you guys do? I'm thinking to give her some more plaster eggs and see how she goes then decide if I give her back some or all of the eggs with 'bator on standby!
Also, a bad Momma the first time isn't always a bad Momma the 2nd time, however, in my experience, if they are bad Mommas twice, they never get the hang of it. So I either get rid of them or they don't get to stay broody.

didn't think they could
4 Barred Rock close to point of lay was hoping to bring back daily layers
as God love the others they are not... have one black copper marans from a members egg had 5 the other 4 not smart crawled from Mom Silky getting cold and died... Grabbed it brought it back in to brooder but was lonely went to local feed store for chicken food brought home 2 pullet they call them ameracauna I call them EE little marans has friends the 4 from the breeder all cuckoo marans a month behind the BR... Many not ready to lay grower use through the roof ... birds in Silky land cm 2nd room .. Silky on 12 more from Washington state member he lives on the east side of the state me on the west their mother is over here they meet us 21 miles from our home so win, win what a great guy he is no charge for any of them.. he brought 7 cockerel for us to take to the auction house here We met him Monday auction is Saturday's drop of Friday
so we have become good friends 
