Oh my gosh, what a wonderful Thanksgiving-time blessing!
Did you tell the parents yet? They will be

multiplied by a million!
Now, if your DF could only sing... because he needs to sing "She's Everything" to
you
"...she's a picture in my wallet,
and my unborn children's mother..."
If you haven't told them yet, I am with Fairy Tale Bride; tell them at the reception. How cool if your fiance could make a toast to you and include that *little* piece of info! But no matter how they hear about it, it will make for a special holiday.
Take care of yourself, happylalagirl, and God bless!!