If these are cockatiel eggs they should hatch between 18-21 days. They are most likely infertile. Is this her first clutch? How old is she? Since it's 20 days since her last egg give it a few more days and if nothing hatches they were no good. Have you tried candleing them to see if there is a baby in there? Is humidity good? too dry and it's harder for them to get out of the egg.
they're lovebird eggs...i didn't candle because i wanted 2 disturb as little as possible, was this a bad idea? also hw much longer shld i wait before removing the egs?
I can't remember how long lovebirds eggs take. I think about the same as cockatiels. Give them another week and if they don't hatch candle them. Lovebirds need humid nests for eggs to hatch.Make sure they have water in a large enough dish that the parents can wet themselves so they can moisten their nest.