That's how I ended up with my 4 baby ducklings a couple of weeks ago. I swore no more ducklings but then I thought about it and thought, Oh What The Heck! Luckily she only hatched out the 4. Now to find homes for the boys as at least one is whistling which means it is a boy for sure. Good luck with your decision.
I want more birds other than the five LF eggs she's sitting on. It's just that the bantams haven't been laying for over a month, and I'm apprehensive about hatching pullet eggs. I ended up taking them away and leaving her with the 5 LF eggs. The eggs were not as warm as expected, so now I'm worried she's quit! Which is weird, since the eggs are on day 9, which means she's been sitting for two weeks (she was broody for 4 extra days before I set the LF eggs)