I'm hoping there's a fan out there who can help me. I remember a scene shortly after little Ricky is born. Lucy and Ricky have decided whoever is the first to hear the baby cry at night is the one who will get out of bed and feed him. This leads to both Lucy and Ricky being awake but pretending they are asleep in hopes the other one will get up and let the other go back to sleep. Can someone please give me the episode title or season/episode number?

Thanks to anyone who can help.

It's in season2 where Mrs. Trumble is first introduced; she takes care of the crying baby at the end of the show.