I've thought for awhile that there was something about a baby between Der/Addy, like maybe miscarriages or infertility or something. There was a scene last season (or maybe the season before) that made me think this. Addy was looking at a baby in the NICU and said to Der, in a wistful voice, "Isn't she beautiful?" And Derek said, "Yes, she really is" or something to that effect. But it made me think that there just might be a history there with babies/pregnancies.
So, it would be very interesting if Addy was indeed pregnant!
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