If you decide to let them brood. Make sure they are fully broody before you give them hatching eggs (usually sitting on an empty nest for 2 or 3 days and nights with only a 15 min break once a day, tells you they are committed to the task. You also need to have a plan to dispose of or deal with the minimum 50% cockerels that will result from any hatch. Keeping more than one adolescent male in a flock is stressful for the flock and probably you..... one is quite bad enough. You also have to consider if you have room for more chickens. Lack of space causes lots of behavioural problems that can be unhealthy, especially in winter when the weather often means they are confined to the coop during the day.
Since they are first time broodies, you probably should also consider having an incubator and brooder on standby in case they abandon their eggs or don't accept the chicks when they hatch.
If you do not want them to hatch any chicks right now, it is better to break them of their broodiness before they get too committed. At this early pre broody stage, removing the eggs regularly and lifting them out of the nest box and into the run and perhaps blocking access back to the nest box for a short while or placing them in a time out cage in the run, might be enough. A wire bottomed broody buster cage chocked up off the ground is the recognised technique for a seriously committed broody. Ensuring air flow underneath her to cool off her underside is what is required. Some people dunk them in cold water but I feel that is a bit drastic. It can take a few days and nights in the wire bottomed cage to break a stubborn one.
Good luck with them