Getting married in 6 days!

Well the countdown officially begins.

I bought my dress about 5 1/2 months ago (give or take some time) and we've been planning like crazy. Well a few weeks after buying my dress i found out i was 5 weeks pregnant, I'm now 19+3 and have begun showing. Im being told by so many to wear a blazer to hide my tummy or to use my bouquet. I'm very proud we are creating life and I'm very proud of this tummy thats growing because my baby boy is growing 💙 i would love to tell these people to shove off but it's my fiances family who have always commented on my weight by now it's just going to far. I dont want to cover up my baby bump. I LOVE my bump. I'm getting prenuptial photos done and i will proudly be including my baby bump, my sis inlaw is not happy about it she stated "hiding it will make your photos more classy". Like wtf.

Do i have my fiance talk with her? Or should i just ignore her negativity towards this whole situation? I care how she feels and dont want this to be a negative experience for anyone, but it's not her wedding and surely not her problem if i show in photos.