My female had sexual intercourse with the male budgie a few months ago, but we still didn't see any eggs laid, its tummy is a bit swollen so I assume it's pregnant. We tried to feel her tummy and we did feel something round in there. Some people suggested we apply some petroleum jelly while rubbing to see if the egg can be pushed out but it didn't seem to work. I'm afraid exerting too much force will hurt her so I didn't dare to do anything besides waiting. Someone told me that the egg was supposed to be laid but maybe she didn't have enough force to push it out so it hardens inside and got stuck in her body. It can still poop which is kind of watery and big, like if I don't clean her nest house, a pile will be left stranded there, so I'm not sure it has something to do with laying eggs. It also has some difficulty with breathing. Is there anything I can to help her lay the egg besides going to the vet? Thank you so much!