I just saw your mating footage and now you have an egg! Superb and exciting! So in a little less than 3 weeks you should have a wee budgie or possibly more. Since your budgies have been naughty behind your back, I think it is safe to assume that they will continue and you will have a fair amount of eggs! Hopefully most will be viable! Crossing fingers for you!
Did you plan on breeding them when you got them or did this just kinda happen?
Can't wait for the next few weeks to pass! Looks like we need to send baby budgie gifts! Congrats on the first egg