Birthday party causing huge social anxiety

[VTeeVa]

My DS is 6 and it'll be his first 'big' birthday party this year.
I've sent out a message on WhatsApp to the entire class but only had about 3 replies. Messaged the mum from his friend from preschool, who is now at another school, and she has not replied. I am just so stressed. I'm about to hire a children's entertainer but what if nobody turns up?! We have about 6 yes replies and loads of others have not bothered. I don't want to be that parent and keep pestering people but it's Saturday week and it seems like not very much time. Shall I assume people will turn up anyway, and cater for the whole class, or just assume people will reply in the coming week?
I know its partly me, I do worry about fitting in and other parents liking me (I am ND and it shows, so I don't have many playground friends) but I thought even if they didn't like me, parents would want their kids to go to a birthday party as its a way to keep them occupied for a Saturday afternoon. I sent the message out on Saturday.
Thanks

Message again. Did you give an RSVP deadline, saying when people needed to reply by? People are notoriously crap at replying to party invitations.

It’s a birthday party in a week and you only sent the invite out on Saturday? That’s very short notice, and are you sure the entertainer would even be available that short notice? Most of the time they’re booked up months in advance.
Class party invites are super tricky as so many don’t reply and then it’s unclear if they’re coming or not and others do reply but then don’t turn up. I would send a note individually to the people invited asking for a yay or nay by X date so you know how many to cater for.

I expect if you’ve only given a week’s notice this might explain the lack of response as many will already be busy ?

Definitely chase them up - message them individually that’s what I normally do!

I'd send a note saying you're about to confirm numbers so can those who haven't confirmed do so by x date - and pop yes/no in as a poll. People are lazy and distracted so sometimes a poll is the easier option.

Just send a chase-up, with a deadline - but keep it light and informal, say you'd like to have a good idea of how many sandwiches to make, or something like that.

And maybe send an individual message to the "important" people (closest friends).

It won't be about "you", so please don't worry about that. More likely, it's people just being flaky/thoughtless/busy and not replying. Even if the whole class aren't there, I'm sure your DS will love it.

Thanks for the replies... No I stupidly didn't put a 'reply by this date' in my email. I will start messaging the parents of the kids he likes individually this week I think, that is a good idea.

It's not this Saturday it is the one after. The children's entertainer is free but I need to send him money for a deposit.

It sounds stupid but I just feel so stressed about it! Like it's a reflection on me, the weird mum.