My vehicle registration expires today Jan 14 but I paid for it on Jan 02 and it said I would receive it within 5 business days and I still haven't received it yet Will anything happen?

So long as you have the receipt of payment, you should be covered. You may still be ticketed, but that receipt should suffice to keep you from having to pay a fine, if your registration isn't yet received by the day you're to appear in court.