The started mating about two days ago, They only "DO IT" when i am in bed at night and they are so hard to train because they both get mood swings. I was wondering about how long it takes them to lay the eggs and some facts about parakeet babies Also i would like to know what are the chances she will lay fertile eggs.????

please tell me what to do.

Here, read this site. It explains pretty much everything you want answered about parakeet mating and egg laying. Parakeet Breeding