Miranda gives birth during the Sex and the City season four finale, "I Heart NY."
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Sex and the City Season 4 Episode 18 Quotes

Big: I can't believe you're leaving me alone with a horse and buggy.
Carrie: Thanks for the ride Prince Charming.
Big: Anytime.

Samantha: Where were you on your lunch break? I stopped by your office and you weren't there.
Richard: I was eating.
Samantha: Eating? Eating who?