For sure going broody. So, are you going to allow her to set---to hatch? If so you got to remove all eggs under her every day and collect a fresh number of eggs, to put under her a the same time---marked if you are going to leave her with the flock and you will have to look under her every day and remove any unmarked eggs so a staggered hatch(BAD) does not happen. I would look under her every day until the end of day 18 then hands off and let her hatch.
If you do not want her to set----Then I would Suggest you "break" her ASAP.