Quote from Rachel in The One with the Stripper
Rachel: This was such a huge mistake. I can't tell him, Phoebe. I can't. I can't. I can't. Phoebe: Rachel, no it's okay- Rachel: Here's what's gonna happen. I'm gonna wait a couple of years, and then the baby will tell him. Phoebe: Why? So he can get mad at the baby? Rachel: Hey, that is the baby's problem.