So I sent a save the date to my cousin and her boyfriend (addressed specifically to just the two of them) who live in the UK. They have a 6 month old baby and unbeknownst to me the 8 year old daughter of the boyfriend now lives with them.
I just got a message asking me for accommodation recommendations for “all of us” which I how I found out about the 8 year old. And then to top it all off my cousin tells me she’s hoping to also have a new baby by then as well. My cousin has assumed all three children would be invited to the wedding, but that’s really not what we were banking on. We could have managed a toddler, but an 8 year old and a newborn when we were hoping to have a child free wedding is more than we want to deal with. It’s also a bit unfair in my opinion to assume we’ll just be ok with the extra three guests. I don’t want to hurt anyone’s feelings but I just don’t know what to do.