Doctor Who: 20 Things You Didn't Know About Blink
6. Sally Was Initially Pregnant At The Episode’s End
Blink isn't just about Sally taking on the Angels, it's also about her getting it on with her dead friend's brother!
Presumably, Sally Sparrow and Larry Nightingale bonded over having bird-related surnames. Hopefully they didn't go double-barrelled when they got married.
To really drive their romance home, Moffat originally wrote Sally to be pregnant at the end of the episode. However, this was changed, because Moffat wanted to show the couple getting together after Sally met with the Doctor and Martha, thus concluding her business with the Angels.
He figured it would be more impactful that way, and you know what, he was right.