Postpone Christmas on a later date?

Long story short, I’m a single mom raising a 4 year old boy by myself. The job I have told me I have work part time instead of full time. I can’t afford to work part time. So I’m looking for a full time job. It’s November and I’m running out of time to get Christmas ready for my son. However, I’m still going to give him Christmas.. but a on a later date. I don’t want him to think Santa didn’t give him anything for Christmas on Christmas Day, so I was going to postpone it.
My question is, is this the wrong thing to do? I’ve never done this before and I don’t want to ruin Christmas.
Postpone Christmas on a later date?
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