I have a pair of one year old budgies, and well, they're not very experienced.. The first egg was (probably) purposely broken by hen (probably infertile) the second egg got stuck on her belly (I don't have the slightest clue HOW, I think it was broken and she tried to hatch it.. although it didn't look broken.. instead it was me who broke it when I tried to wash it off of her--I'm guessing I'm not the most favorite person in her opinion right now.) She laid her third egg, and the cock decided to hatch it himself, since the hen kept messing up (he's done a good job so far) and well hen will probably lay her forth egg at night or sometime tomarrow. I'm wondering.. if she broke her first egg and 'lost' the second one, is she going to lay too many eggs (kind of like when you take away the infertile eggs as soon as you find out they are infertile and the hen will lay another clutch?) ..I hope you understand what I mean, since this post doesn't make much sense to me.. LOL, I'm terrible at explaining things.

Budgerigars will lay untill they have a clutch. If the first few eggs are infertile and you take them away, she will lay more.

As Daz has said she will lay until she thinks she has a clutch about 5 eggs normally but I have had a hen lay 9.

You might want to put some plastic eggs in there. It might convince her that she has eggs, as well as helping to provide some protection to the real eggs when they are layed. You can buy them from pet shops. Or you can use marbles.