So, I just realized that this is the only time Rory (or the Doctor) got to see his wife pregnant. She was kidnapped by the Silence soon after she found out she was pregnant with River, and was never able to have children again.
Seriously too fun not to share. Since you are building your dream home, why not incorporate this awesome doorway into your movie, entertainment room or man cave? dream home ideas. "Bigger on the inside"
Do not park anything non-TARDISy in front of this unless you want Whovians running up and walking around it saying "I wonder if it's bigger on the inside?" and "Where's The Doctor?" Doctor Who TARDIS Parking Only Sign.