To insist upon change of date for charity fundraiser?

[Sailinghappy]

Unsure if I’m being unreasonable as I’m very heavily pregnant and very hormonal basically, DH has just announced he’s organised a community fundraiser event approximately 3 weeks after my due date (very soon). To be clear, this is not a special date and has been selected by him. It will take him all day but I’m also worried about last minute organisation/ people needing him to do this or that when baby is born. For all we know, he could be 2 weeks overdue and very tiny or I could be in recovery from an emergency section. I’m not saying that will happen... I just don’t understand why he would plan this now? He said it’s not an issue, will organise MIL to help me out for the day with our other DC and he won’t go to the celebration afterward so will be home before I know it. Would I be unreasonable to insist he pushes it back a few weeks?

It does seem an odd choice of date, if there is no particular reason for that date.
I mean, there may be a good reason - no point in having a Christmas Fete in January for example
If it really is a random date, then yes, I'd ask him to move it 6 months down the line.

Yanbu, he'll need to do a lot of organising in the weeks leading up to it.