My buff Orpington just started laying (wooo!) she started around 18 weeks and is now 20 weeks old. She was laying cute little perfect eggs once a day but now she will go a day inbetween at random intervals. Is this normal? These are my first chickens so not sure what to expect! I’ve only had ducks before who were random interval layers. Want to make sure I’m doing everything right. They are on layer pellets and have oyster shell out to snack on but no one seems to bother with it. Thanks!