Need opinions for pictures

I recently just got married but we didn’t do a ceremony and instead did a self unifying document.. I am currently 7 months pregnant and we will do a celebration with family and friends next year but I wanted something to announce so I wanted to get pictures done and then send out a Christmas card to friends and family that says like just married or “Married and bright happy holidays” something like that.

I have a white maternity dress that I bought but just looks so huge in it and don’t feel cute at all.

Should I wear the white dress for the pictures or should I wear just like a sweater dress with leggings and boots since it will be more of a fall picture? Would it still make sense if I announce our marriage without me wearing a white dress?? I just don’t look good in white and just look huge.