Muscovy set one egg for a while and then laid more

[lisae87]

My Muscovy hen (newbie) has laid only one egg and set it for a couple weeks. She has been continuously on the best. I decided to let her keep the one and see what happened... I returned from vacation and now she has about half a dozen more eggs under her. This seems weird to me that she went so long with the one and then laid more. I assume that this will pose issues if and when the first hatches. Is be best to pull the extra eggs to the incubator when the original egg hatches? Anyone have experience with this? Thanks!