Covid uninvite guests

The new covid variant is causing me anxiety. I rescheduled my wedding from last year. Our original plan was to only invite 50 people. Now we are up to 85. I feel like I guilted myself into inviting a few guests I was on the fence about and those I guests are asking about bringing their kids. My kids will be there but I didn’t put and family on the invites. I have a toddler and I’m worried about him being around a bunch of people. My fiancé has several people in his family who refuse to get vaccinations. I did send a note out about wearing a mask if they aren’t vaccinated. Anyone having a similar issue or sending out change of plan cards due to the new delta variant of covid?