Zebra finches...HELP PLEASE?!?!?

my zebra finch laid an egg on the 2nd of may and then she laid 1 on the 16 and 17 so i was pretty sure the 1st the she ever laid was no good ut i kept it there cause i didnt know what one was it!! and today when i woke up there was 2 at the bottom of the cage...did they mean to push 2 out or should i put them back in and see if they only push one out??