The SIL needs to chill. This wedding is about the couple getting married and not your "rainbow" babies. I'm sorry, but that term is ridiculous. They are going to turn into spoiled brats if she doesn't let up!

My only concern is whether or not the pets will be comfortable in the surroundings of a wedding. As many of the comments had mentioned above. The sounds, smells, and people may be overwhelming to them. It will likely be a scale of interaction that they've never seen before. They are NTA for wanting their pets to be in their wedding, I can understand that completely. I hope there's some way for them to test their pets, on a smaller scale, to see if they will be okay during a wedding. While many pets may be secure and outgoing in their homes, in a different venue, that can change dramatically. I wish them the best of luck with their pets and their family.

Honestly, and will get downvoted to hell for this (I am willing to accept this) I have always hated the term 'rainbow baby'. Every baby is special, and unique, and it's own little being, loved for being itself. It shouldn't have an extra pressure placed on it for being a replacement for a baby that was lost. It shouldn't have that extra burden of "I can't be wanted for me just being me, i must be the child that was born and didn't survive and the child that did survive, all at once'. And yes, I've had 2 children who survived, bookending 2 children who did not. But I never called the last one a rainbow child. The last one is special for being my child for being my child, not because they were a replacement for ones lost. It's terrible pressure to be placed on a child.

In general i hate those people who react like this. The married couple tell them of their plan and the reaction is that should be my kids role because they are my precious kids. they are your kids so why should others be forced to give them special roles in their lives. not everyone cares about your kids the way you do.

NTA. If the happy couple want Spiderman as the ring bearer, Storm as the MOH, and Deadpool as the officiant, so be it! It's YOUR wedding, YOU are the ones paying for it, and YOU know how you want the ceremony and reception to go. SIL needs to pop a couple of granola bars in her piehole and just enjoy the event. Her children are not supposed to be the center of attention on that particular day. If you and your fiancé want your furbabies in the ceremony, and they won't get stressed out, go for it. If SIL (or anyone else, for that matter) keeps giving you grief about it, give them a choice: drop the subject or stay home. Then walk away. Either way, it will be a lovely time for you.

Yeesh what's happened to the world. People are so entitled these days. If you want a drunk homeless person to be your ring bearer then that's up to you, who gives a s**t about tradition and no offence someone's babies. Loads of pregnancies are difficult does that mean all the special babies should get the best jobs when there older, or priority in the supermarket. Poor kidd are gonna grow up quite entitled aren't they?

Those kids are going to be insufferable. People are already catering to them just for existing. If it were me, I would uninvite the whole family. They WILL show up with them on the day. When my family started getting bossy with my wedding we cancelled it and went to City Hall.

I never heard the term “rainbow baby” till mine was almost 30 years old. I had no idea we were supposed to force everyone to treat her as though she was royalty and super-special. I can understand when your child becomes your life, but expecting someone who barely knows them (lives across the country) to put them in their wedding is ridiculous. When my RAINBOW BABY got married, her dog was the ring bearer, her brother was her Man of Honor, and her sister officiated. The Best Man didn’t care he was standing opposite another man (who was holding the dog’s leash). Because she’s a RAINBOW BABY (seriously, I’m gonna keep doing that), maybe we should have made her be her own flower girl.

This is your wedding. Your pets are your family. They've provided love and support to you and your partner and I admire that you plan to honor them by being a part of your wedding.Your SIL needs to grow up and realize that she and her kids are not the center of the universe. Congratulations!

A HUGE percentage of pregnancies end without a live birth. The "rainbow" s**t needs to end. A kid is a kid, not a miracle.

(Cats, Dogs)>(Boys, Girls) is a true statement.

First of all, we need to get rid of that term 'rainbow baby'. It's a baby, not a consolation prize. It is no more special than any other child that is born. Secondly, raising these kids to believe they're the second coming will do no one any favors. Those kids are going to be groomed to be monsters, then they'll be unleashed on the rest of us to deal with. And the world does not care that these are royal 'rainbow' babies. I can't even describe how much I hate that term.

It would be tempting to find roles for the other grandchildren....

Your wedding. Do what you want.

Your wedding, your decision. The nerve of your SIL.

It's OP and her husband's wedding, not the sister's. I sympathize for her past trauma, and I find it endearing that she seems to fawn over her children, but it's rude to just automatically assume her children will be fulfilling these roles when it's not even her wedding to begin with. It's fair that OP would give these roles to the pets. After all, it's not uncommon that people regard their pets as simply more than just animals, they're family to quite a large margin of people.

Miscarriage suck, don't get me wrong. But when I hear the term Rainbow Baby, I immediately think F***ing Brat & Psycho Parents. I hope they stick with their furbabies and the SIL doesn't cause trouble.

It's a new tradition that's coming up. Plenty of people have dogs in their weddings these days & I think it's sweet. If they're worried about the cat running off, they can use & decorate a pet pram. My friend's MOH pulled their small dog in a little red wagon. Anything goes.

NTA. And if she gives the kids those roles, it will be all about them, her brother and SIL.

Those kids are not special. They are not 'rainbow babies" (what a stupid name). They were born, special part over. The doctors and nurses who did the IVF treatment are the rockstars but the SIL wants to make her dumb crotchfruit the center of the celebrations. The kids did nothing but be squirted out of her vagoo. If OP reads this, you do you OP. Your SIL can go p**s off.

When i read the caption in the cat picture, I thought this was a meme at first 🤣🤣🤣

It's simple. Your wedding, your choice. I love the idea of your pets being the fg and rb. Nobody gets to dictate your wedding but you and your finance.is it traditional (from the 1800s)no. But weddings are what the couple want. Mine wasn't traditional. My bff was a man so I had a gentleman of honor (moh suppose to be your bff) I didn't like the song most brides walk down the aisle to, but I loved the theme music from the beauty and the beast tv show (with Linda Hamilton and Ron perlman), so that was walked down the aisle. And our first dance "mommy he's crazy" by the Judds. Be prepared that sis is going to throw a fit and get other family members to back her up. If you have to block them. Let her know that is your final decision, so she can come to the wedding as it stands orthey can stay home. That's her decision. Don't let you family bully you to change your mind. Stand by your decision. Unfortunately weddings and funerals bring the worst out in family. Congratulations & good luck

Their wedding, their choices, end of argument, period.

Who the f**k really cares

Animals all the way. They are family.

I'd let the dog be ring bearer. Trusting a cat with an expensive item, yikes! Or use a fake ring for the ceremony, and don't tell the cat!

It’s their f****n wedding and it should be about them and their choices, end of, let the pets take the roles, SIL needs a Houston to Earth check 🙄